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View Quote Nice. Wonder how it would do prone. |
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Snip ,... It's a hardware store special right now. 1.25 tube stock, waterproof electric conduit parts, pipe clamp + stick welds....LOL My plan now is to make legit mounting brackets and hopefully full float it. http://i72.photobucket.com/albums/i172/schkoot/Faux-chine%20gun/86DF1ABF-D6AC-47BC-9CF4-61116626C85E_zpspp9xnujc.jpg View Quote Nice! Thanks! |
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View Quote Holy shit, that thing sounds almost identical to a MG42. |
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Quoted: Holy shit, that thing sounds almost identical to a MG42. View Quote View All Quotes View All Quotes Quoted: Holy shit, that thing sounds almost identical to a MG42. I've shot a MG34, really fun with 1100RPM+ ROF. |
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Quoted: I originally set it up on an 18" rifle gas barrel, but it didn't have enough gas. I'm going to open the gas port and try the 18" upper again later. I wanted to see if my stock was working and threw the 14.5" upper on it to test the lower. I need to get another 7.62x39 firing pin to see if it will help with the hammer follow. I think a heavier mass hammer would also be good, as it would slow lock time. ROF seems to be heavily linked with carrier speed. As I get lighter carriers, the speed that I bump is also climbing. |
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Quoted: That's a shame about the upper. I know that feeling. The trigger looks GOOOOD. View Quote View All Quotes View All Quotes Quoted: Quoted: My new BumpSAW was a bust It's got gas issues. It would generally cycle a round, but barely. It failed to lock on an empty mag every time. I swapped to a 14.5 pinned upper and had some really fast runs. Didn't mess with prone fire today as I was mainly working with my binary trigger. Here are some clips from the binary setup. Ill try and get the Bump video uploaded before long. https://youtu.be/OAe1dqg1yeg That's a shame about the upper. I know that feeling. The trigger looks GOOOOD. |
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The binary trigger works pretty well. I've noticed on long strings I slow down a bit. Here is my surefire 100 with the binary trigger, at the end you can hear the slower rate of fire as my finger was getting tired. The upside is that 700-900RPM is pretty sustainable. I need to measure it when I get home tonight and see what my actual ROF was. https://youtu.be/t9O5NAHCp7Y View Quote View All Quotes View All Quotes Quoted:
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My new BumpSAW was a bust It's got gas issues. It would generally cycle a round, but barely. It failed to lock on an empty mag every time. I swapped to a 14.5 pinned upper and had some really fast runs. Didn't mess with prone fire today as I was mainly working with my binary trigger. Here are some clips from the binary setup. Ill try and get the Bump video uploaded before long. https://youtu.be/OAe1dqg1yeg That's a shame about the upper. I know that feeling. The trigger looks GOOOOD. I am interested in checking one out. This may come off as a laugh from me of all people, but I am a little concerned this trigger will get a reversal judgement somehow. I guess I am still a little bit raw over the Can Cannon ordeal. Anyway, I think the trigger would be really good for bursts, but like you said, it's not going to give you that smooth cyclic rate of fire we are getting from the BumpSAWs. I wonder what it would be like with a spade grip on a tripod? that way you could use both thumbs and get less tired? |
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I wanna see an O_P article on Jaq's guns.
*burrrrp* "It's fun to shoot stuff." |
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Lol. It does get kinda spendy. I think I used almost $400 in ammo on Friday. View Quote View All Quotes View All Quotes Quoted:
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Jaqufrost, I hope you know you are going to cost me money. I usually spend the same when I go out. I don't film all my runs because people get sick of holding my phone. |
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Quoted: I usually spend the same when I go out. I don't film all my runs because people get sick of holding my phone. View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Jaqufrost, I hope you know you are going to cost me money. I usually spend the same when I go out. I don't film all my runs because people get sick of holding my phone. Thankfully the Ion camera I bought the night before and rigged a gun mount for worked well. It was on clearance at Walmart for $35 from $150! |
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I really need a good camera for this kind of stuff. Any recommendations?
Also, I was thinking about dropping the money on one of the new slide fire stocks and painting it brown for the 3rd BumpSAW. Anyone have one? I can't remember seeing one in this thread. |
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Quoted: I really need a good camera for this kind of stuff. Any recommendations? Also, I was thinking about dropping the money on one of the new slide fire stocks and painting it brown for the 3rd BumpSAW. Anyone have one? I can't remember seeing one in this thread. View Quote I haven't seen anyone use the new slidefire. I wish they sold it for $100 or so, I would grab one. |
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How do I build a homemade bump fire stock like jaqufrost? I happen to have a fixed magpul stock from a trade and wouldn't mind trying.
Has anyone tried the franklin armory binary trigger with a bump stock yet, how did it work? I'm just now tuning in to this thread on page 51, if it's been covered could someone tell me what page it was on? Thanks. |
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Quoted: How do I build a homemade bump fire stock like jaqufrost? I happen to have a fixed magpul stock from a trade and wouldn't mind trying. Has anyone tried the franklin armory binary trigger with a bump stock yet, how did it work? I'm just now tuning in to this thread on page 51, if it's been covered could someone tell me what page it was on? Thanks. View Quote My new bump stock I switched up a little and used the cross bolt that came with the stock instead of putting an extra pin in the receiver extension. I tap the receiver and use a very short 8-32 set screw to hold the selector detent and spring in. I cut the spring roughly in half and cut the selector detent in half as well. JT Grip Solutions is supposed to have a sliding grip available this summer. I'm not sure how much they will cost, but they would probably work well for the grip portion. I just use a Magpul MIAD and cut the inside to fit my metal rod. |
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Just an update for anyone debating using the Frankford Arsenal Binary trigger for a IAR type build, I am getting a steady 650RPM with mine, with occasional quick splits in the 900RPM range.
I'm using PowerDirector 14 (with the included AudioDirector 6) to measure my RPM. I just pull up the audio and measure the time between sound peaks. With the Ion camera, the audio is peaking nicely and it's easy to read. In the past I've used AVS audio editor, you can download the trial version for free and use it to check your speed. |
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Quoted: Dumb question... Having handled one of these triggers, how do you think it would work with one of these? http://cdn.shopify.com/s/files/1/0217/6010/products/img_0597_large.jpeg?v=1378268763 View Quote View All Quotes View All Quotes Quoted: Quoted: Just an update for anyone debating using the Frankford Arsenal Binary trigger for a IAR type build, I am getting a steady 650RPM with mine, with occasional quick splits in the 900RPM range. I'm using PowerDirector 14 (with the included AudioDirector 6) to measure my RPM. I just pull up the audio and measure the time between sound peaks. With the Ion camera, the audio is peaking nicely and it's easy to read. In the past I've used AVS audio editor, you can download the trial version for free and use it to check your speed. Dumb question... Having handled one of these triggers, how do you think it would work with one of these? http://cdn.shopify.com/s/files/1/0217/6010/products/img_0597_large.jpeg?v=1378268763 |
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I don't see why it wouldn't work just fine. View Quote View All Quotes View All Quotes Quoted:
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Just an update for anyone debating using the Frankford Arsenal Binary trigger for a IAR type build, I am getting a steady 650RPM with mine, with occasional quick splits in the 900RPM range. I'm using PowerDirector 14 (with the included AudioDirector 6) to measure my RPM. I just pull up the audio and measure the time between sound peaks. With the Ion camera, the audio is peaking nicely and it's easy to read. In the past I've used AVS audio editor, you can download the trial version for free and use it to check your speed. Dumb question... Having handled one of these triggers, how do you think it would work with one of these? http://cdn.shopify.com/s/files/1/0217/6010/products/img_0597_large.jpeg?v=1378268763 I guess I edited too soon. I am thinking alternating thumbs in a rhythm might be able to produce some pretty fast strings of fire without getting tired. |
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Well, I think you would need a couple armatac drums on standby along with a couple uppers
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That is my pinned 14.5" ARP barreled upper with Rainier XTC comp, Aluminum carrier and AIM BAKUP bolt. The lower is an 80% with a debadged BRO trigger (built by Rise Armament for Black Rain Ordinance), 3oz buffer, Sprinco Orange spring and a home made bump stock built from Magpul fixed carbine stock and a MIAD grip. I originally set it up on an 18" rifle gas barrel, but it didn't have enough gas. I'm going to open the gas port and try the 18" upper again later. I wanted to see if my stock was working and threw the 14.5" upper on it to test the lower. I need to get another 7.62x39 firing pin to see if it will help with the hammer follow. I think a heavier mass hammer would also be good, as it would slow lock time. ROF seems to be heavily linked with carrier speed. As I get lighter carriers, the speed that I bump is also climbing. View Quote View All Quotes View All Quotes Quoted:
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I originally set it up on an 18" rifle gas barrel, but it didn't have enough gas. I'm going to open the gas port and try the 18" upper again later. I wanted to see if my stock was working and threw the 14.5" upper on it to test the lower. I need to get another 7.62x39 firing pin to see if it will help with the hammer follow. I think a heavier mass hammer would also be good, as it would slow lock time. ROF seems to be heavily linked with carrier speed. As I get lighter carriers, the speed that I bump is also climbing. What's the significance of the 7.62x39 firing pin? Heavier mass to hit forward for the hammer? |
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Quoted: What's the significance of the 7.62x39 firing pin? Heavier mass to hit forward for the hammer? View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: I originally set it up on an 18" rifle gas barrel, but it didn't have enough gas. I'm going to open the gas port and try the 18" upper again later. I wanted to see if my stock was working and threw the 14.5" upper on it to test the lower. I need to get another 7.62x39 firing pin to see if it will help with the hammer follow. I think a heavier mass hammer would also be good, as it would slow lock time. ROF seems to be heavily linked with carrier speed. As I get lighter carriers, the speed that I bump is also climbing. What's the significance of the 7.62x39 firing pin? Heavier mass to hit forward for the hammer? |
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View Quote That's pretty sweet - Clint |
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Quoted: That's pretty sweet - Clint |
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It's awesome to see all the new activity in this thread. Jaqufrost is owning the last few pages...can't wait to see it proned out!
I'll be more excited to see some different posters jumping in with their own BumpSAWs. |
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I just moved to a new state and I'm looking for a new range to shoot/test mine at. I'm running my same setup, a spikes lower with a Jard 1.5# single stage trigger on a Colt 604 upper with a Colt M16 bcg, with a DefendAR15.
I've got a NiB bcg that I want to see if it will increase the rate of fire. After seeing what the light weight bcg will do I might have to order one. Thinking about trying a Geissle trigger and switching to an M4 upper. I ran a couple different M4 uppers and the rate of fire was much slower than what I could get out of my 604 upper. I've got a unknown buffer in it and think that may have been the reason. Let's keep this thing going. |
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Quoted: I just moved to a new state and I'm looking for a new range to shoot/test mine at. I'm running my same setup, a spikes lower with a Jard 1.5# single stage trigger on a Colt 604 upper with a Colt M16 bcg, with a DefendAR15. I've got a NiB bcg that I want to see if it will increase the rate of fire. After seeing what the light weight bcg will do I might have to order one. Thinking about trying a Geissle trigger and switching to an M4 upper. I ran a couple different M4 uppers and the rate of fire was much slower than what I could get out of my 604 upper. I've got a unknown buffer in it and think that may have been the reason. Let's keep this thing going. View Quote Geissele high speed has a 4.4 millisecond lock time (.0044 seconds), a stock trigger has about 10ms (.010s) and a JARD I believe is closer to 16ms (.016s). Considering a ROF of 900RPM, you have a cycle time of .066s. So a Geissele high speed is reaching the firing pin in about 6.66% of the cycle time. A JARD is taking about 24.25% of the cycle time to reach the firing pin. |
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The Geissele triggers have a very short lock time. I believe that increases the hammer follow problems as the carrier has less time to close before the hammer reaches it. Geissele high speed has a 4.4 millisecond lock time (.0044 seconds), a stock trigger has about 10ms (.010s) and a JARD I believe is closer to 16ms (.016s). Considering a ROF of 900RPM, you have a cycle time of .066s. So a Geissele high speed is reaching the firing pin in about 6.66% of the cycle time. A JARD is taking about 24.25% of the cycle time to reach the firing pin. View Quote View All Quotes View All Quotes Quoted:
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I just moved to a new state and I'm looking for a new range to shoot/test mine at. I'm running my same setup, a spikes lower with a Jard 1.5# single stage trigger on a Colt 604 upper with a Colt M16 bcg, with a DefendAR15. I've got a NiB bcg that I want to see if it will increase the rate of fire. After seeing what the light weight bcg will do I might have to order one. Thinking about trying a Geissle trigger and switching to an M4 upper. I ran a couple different M4 uppers and the rate of fire was much slower than what I could get out of my 604 upper. I've got a unknown buffer in it and think that may have been the reason. Let's keep this thing going. Geissele high speed has a 4.4 millisecond lock time (.0044 seconds), a stock trigger has about 10ms (.010s) and a JARD I believe is closer to 16ms (.016s). Considering a ROF of 900RPM, you have a cycle time of .066s. So a Geissele high speed is reaching the firing pin in about 6.66% of the cycle time. A JARD is taking about 24.25% of the cycle time to reach the firing pin. What do you recommend? And what are you using? |
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Quoted: What do you recommend? And what are you using? View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: I just moved to a new state and I'm looking for a new range to shoot/test mine at. I'm running my same setup, a spikes lower with a Jard 1.5# single stage trigger on a Colt 604 upper with a Colt M16 bcg, with a DefendAR15. I've got a NiB bcg that I want to see if it will increase the rate of fire. After seeing what the light weight bcg will do I might have to order one. Thinking about trying a Geissle trigger and switching to an M4 upper. I ran a couple different M4 uppers and the rate of fire was much slower than what I could get out of my 604 upper. I've got a unknown buffer in it and think that may have been the reason. Let's keep this thing going. Geissele high speed has a 4.4 millisecond lock time (.0044 seconds), a stock trigger has about 10ms (.010s) and a JARD I believe is closer to 16ms (.016s). Considering a ROF of 900RPM, you have a cycle time of .066s. So a Geissele high speed is reaching the firing pin in about 6.66% of the cycle time. A JARD is taking about 24.25% of the cycle time to reach the firing pin. What do you recommend? And what are you using? |
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What's the best stock to go with? I know they all ah e their advantages but from everyone here who has tried them all, what do I get? And do any had a qd strap on the stock?
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What's the best stock to go with? I know they all ah e their advantages but from everyone here who has tried them all, what do I get? And do any had a qd strap on the stock? View Quote I believe the general consensus is the Fostech DefenAR15 is the best made... the rest are basically plastic and the same. - Clint |
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A couple videos from SHOT https://youtu.be/7vgNKbU2Lus https://youtu.be/7vgNKbU2Lus https://youtu.be/sdMukEEFCmI https://youtu.be/sdMukEEFCmI View Quote I definitely want that brown stock.... But why the hell don't they advertise their belt fed setup with a bipod? |
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View Quote It sounds like thd Fostech has a nicer base trigger than the Frankford. Fostech's price is $80 higher. They are supposed to ship in May. |
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Hmmm... These new triggers make me unsure which direction I should continue to go with my BumpSAWs.
On one hand, it would be nice to have normal stocks and accessories on them. On the other, I am just not sure you could really keep that rate of fire up all day, and that it wouldn't galloping horses after a couple of mags. The sound and feel of the smooth, high RoF is a big thing for me. |
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Hmmm... These new triggers make me unsure which direction I should continue to go with my BumpSAWs. On one hand, it would be nice to have normal stocks and accessories on them. On the other, I am just not sure you could really keep that rate of fire up all day, and that it wouldn't galloping horses after a couple of mags. The sound and feel of the sooth, high RoF is a big thing for me. View Quote I think it's important to recognize new technology and new techniques and if something comes along that is better, to accept it and use it to the best of your ability. It's also completely ok to try something, realize that it's not better than what you already have and go back to your old methods... it is also beneficial when you are able to tell people not to go that route since you've BTDT and to save ya'll's money, and to show them what works better! Thanks for this thread Skillet... it is driving me toward something that will be very unique in a world where everybody is falling in step with the crowd and what they say is acceptable and "in." - Clint |
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I think it's important to recognize new technology and new techniques and if something comes along that is better, to accept it and use it to the best of your ability. It's also completely ok to try something, realize that it's not better than what you already have and go back to your old methods... it is also beneficial when you are able to tell people not to go that route since you've BTDT and to save ya'll's money, and to show them what works better! Thanks for this thread Skillet... it is driving me toward something that will be very unique in a world where everybody is falling in step with the crowd and what they say is acceptable and "in." - Clint View Quote View All Quotes View All Quotes Quoted:
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Hmmm... These new triggers make me unsure which direction I should continue to go with my BumpSAWs. On one hand, it would be nice to have normal stocks and accessories on them. On the other, I am just not sure you could really keep that rate of fire up all day, and that it wouldn't galloping horses after a couple of mags. The sound and feel of the sooth, high RoF is a big thing for me. I think it's important to recognize new technology and new techniques and if something comes along that is better, to accept it and use it to the best of your ability. It's also completely ok to try something, realize that it's not better than what you already have and go back to your old methods... it is also beneficial when you are able to tell people not to go that route since you've BTDT and to save ya'll's money, and to show them what works better! Thanks for this thread Skillet... it is driving me toward something that will be very unique in a world where everybody is falling in step with the crowd and what they say is acceptable and "in." - Clint You need to let me know what this plan is—off board if necessary. As to the trigger, I want one, but I just want to drop it into my receivers. Is there a trigger-only option? |
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I believe the general consensus is the Fostech DefenAR15 is the best made... the rest are basically plastic and the same. - Clint View Quote View All Quotes View All Quotes Quoted:
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What's the best stock to go with? I know they all ah e their advantages but from everyone here who has tried them all, what do I get? And do any had a qd strap on the stock? I believe the general consensus is the Fostech DefenAR15 is the best made... the rest are basically plastic and the same. - Clint Looks good and well made. That being said I'll wait for the price to come down a little bit. Quick question, do you think bump stocks have a place in real world battlefield applications? I'm completely ignorant to them I admit. I've never held or shot one but my concern would be having to "float" the stock to get it to bumpfire under stress in a firefight. Also, the trigger block that's built in to the stock, seems like that would be a hindrance when shooting semi / precision shots. |
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Looks good and well made. That being said I'll wait for the price to come down a little bit. Quick question, do you think bump stocks have a place in real world battlefield applications? I'm completely ignorant to them I admit. I've never held or shot one but my concern would be having to "float" the stock to get it to bumpfire under stress in a firefight. Also, the trigger block that's built in to the stock, seems like that would be a hindrance when shooting semi / precision shots. View Quote View All Quotes View All Quotes Quoted:
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What's the best stock to go with? I know they all ah e their advantages but from everyone here who has tried them all, what do I get? And do any had a qd strap on the stock? I believe the general consensus is the Fostech DefenAR15 is the best made... the rest are basically plastic and the same. - Clint Looks good and well made. That being said I'll wait for the price to come down a little bit. Quick question, do you think bump stocks have a place in real world battlefield applications? I'm completely ignorant to them I admit. I've never held or shot one but my concern would be having to "float" the stock to get it to bumpfire under stress in a firefight. Also, the trigger block that's built in to the stock, seems like that would be a hindrance when shooting semi / precision shots. It's pretty close, but if I had to use my BumpSAW back in Iraq, I would say it would only maybe work from defensive positions. I think if you trained on it enough, you might get it... But as I always say, if the ruskies are parachuting in over calumet, the NFA is irrelevant. |
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Ge'ezum crow that's fast!
I have one of those debadged triggers in a pistol build. Not planning to put it in a gun with a bump stock because I can't really afford the ammo that I burn as it is. But this pistol is gonna be fast, I hope. Thanks for all the work here on making these guns go really fast. |
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Apparently the Franklin Arms triggers are not available to WA residents due to some ambiguity over the RCW definition of a machine gun.
Luckily, bumpfire stocks are still safe. |
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