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Posted: 4/8/2010 12:34:06 PM EDT
Animation HD Video will be up tonight. <br> Now it is possible to practice with full function controls using rimfire ammunition. The Pat Pending Bolt Hold Open Actuator is a 4 second drop-in component that bridges the gap between the standard AR15 bolt catch and the all new pat pending Bolt Hold Open Follower. With tens of thousands of .22 magazines out in circulation, CMMG has developed a drop-in retrofit follower and spring that simply replaces the standard follower and spring of the CMMG magazine. The low cost BHOA/BHOF gives total bolt catch/release function with absolutely no gunsmithing. BHOA shown in down position BHOA shown in up position BHOA consists of simple polymer housing, steel transfer bar and roll pin. Its unique ,self locating design, makes it very easy and fast to install. Once ammo is depleted, the top half of the BHOF shifts to engage BHOA transfer bar BHOF kit consists of fully assembled follower and retrofit spring. Final tooling is nearing completion. We are looking at June to start pushing these out in quantity. Posted Via AR15.Com Mobile |
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That's a pretty amazing animation. I take it that this is really a slip in slip out assembly.
Guess I should watch the video too...... Thanx for this update / new product.. Spec PS: I just watched the video. Congratulations CMMG on this very innovative new product. |
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It will with any Atchisson/Ciener style conversion or upper, the spring and follower will drop-in to our magazines.
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Tentative pricing is as follows:
$7.50 for the Follower and Spring $24.95 for the Magazine with the Follower and Spring $19.95 for the Bolt Hold Open Actuator assembly |
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OMG!
Take this check, write down any number you want, and I'll pay it. |
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It will with any Atchisson/Ciener style conversion or upper, the spring and follower will drop-in to our magazines. Good job CMMG, this is very innovative! I'll be ordering one ASAP, however, I do hope these followers work with BDM mags as I'm 50/50 BDM/CMMG. |
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Quoted: Quoted: It will with any Atchisson/Ciener style conversion or upper, the spring and follower will drop-in to our magazines. Good job CMMG, this is very innovative! I'll be ordering one ASAP, however, I do hope these followers work with BDM mags as I'm 50/50 BDM/CMMG. The BDMs will work but need a small thin 3/8" step removed on the back channel at the top. Once made smooth, the spring and follower will drop right in and you are GTG. |
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It will with any Atchisson/Ciener style conversion or upper, the spring and follower will drop-in to our magazines. Good job CMMG, this is very innovative! I'll be ordering one ASAP, however, I do hope these followers work with BDM mags as I'm 50/50 BDM/CMMG. The BDMs will work but need a small thin 3/8" step removed on the back channel at the top. Once made smooth, the spring and follower will drop right in and you are GTG. Great! how may rounds does the mag hold with the new follower? |
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At this point the capacity is same. With final tooling, we are seeing about the possibility of getting one extra round in.
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Awesome! Cant wait.
One question though: In order for this to work, the new followers must be used, correct?
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Very nice work!!
Glad I didnt buy too many mags yet! Edit: Your link for discussion in the new products thread takes you to the wrong thread, unless you wanted it to go to SpecOps thread... |
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Quoted: Very nice work!! Glad I didnt buy too many mags yet! Edit: Your link for discussion in the new products thread takes you to the wrong thread, unless you wanted it to go to SpecOps thread... Doh! I think I got it fixed |
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You people have got to stop finding ways to make me spend money. jesus christ i need a breather.
Im in for 2 |
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Cool! Now the juices in my brain are being stimulated as I type this.
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do you have to replace the spring and followers in your existing mags, and use the hold open plate?
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Quoted: do you have to replace the spring and followers in your existing mags, and use the hold open plate? If I understand you correctly, yes. You will need to the bolt hold open actuator(BHOA) and you will need to replace all the springs and followers of the mags you wish to have the last shot bolt hold open feature. The bolt hold open follower(BHOF) will not work by itself. The BHOF is not long enough to reach the bolt catch. The BHOF shifts up and back after the last round and lifts the transfer bar of the BHOA. The BHOA is slaved to the bolt catch. |
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Very innovative and practical design! The sliding feature of the follower is genius!!!!!!!
Looking forward to getting some. Will you post when they are available for pre order? Excellent work! |
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If I have your BHOA installed in my lower, would the older CMMG or BDM magazines with the old LRBHO followers still function?
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Damn CMMG! Nice solution. If this works with BDM mags & a Tac Sol upper I'm all over this kit. What's the experts verdict on the compatibility?
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Quoted: If I have your BHOA installed in my lower, would the older CMMG or BDM magazines with the old LRBHO followers still function? This can be used with the LRBHO. The mag will keep the bolt back until it is removed. |
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Well this should liven up the .22 section all right! Someone must have stayed awake quite a few nights thinking up that idea. If it works as slick as it looks, it should revolutionize tactical drills with the .22s.
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We haven't tested this with the tacsol upper specifically, though we have running it in our soon-to-be-re-relaease dedicated .22 with no issue at all. I will give Drake a buzz and see about getting a BAD lever in. May need to borrow a tac-sol upper from someone to verify function as it is. One way or the other, it will work, we can always make a mod if there is issue.
Regarding ordering, once tooling is finalized and test samples ran, we will begin taking pre orders. |
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We haven't tested this with the tacsol upper specifically, though we have running it in our soon-to-be-re-relaease dedicated .22 with no issue at all. I will give Drake a buzz and see about getting a BAD lever in. May need to borrow a tac-sol upper from someone to verify function as it is. One way or the other, it will work, we can always make a mod if there is issue. Regarding ordering, once tooling is finalized and test samples ran, we will begin taking pre orders. If you don't come up with a TacSol upper locally, let me know. I'm just over the border in Kansas and would loan you one if you need it. I'm anxious to see how these work out. Tom-> |
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our soon-to-be-re-relaease dedicated .22. Details please? |
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Quoted: Tom, If you would let us borrow it, I will send you a free block and three retrofit followers as soon as they are finished. If you want to send your address in an email, we will send a call tag out.Quoted: We haven't tested this with the tacsol upper specifically, though we have running it in our soon-to-be-re-relaease dedicated .22 with no issue at all. I will give Drake a buzz and see about getting a BAD lever in. May need to borrow a tac-sol upper from someone to verify function as it is. One way or the other, it will work, we can always make a mod if there is issue. Regarding ordering, once tooling is finalized and test samples ran, we will begin taking pre orders. If you don't come up with a TacSol upper locally, let me know. I'm just over the border in Kansas and would loan you one if you need it. I'm anxious to see how these work out. Tom-> Thanks! |
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sorry if this is a dumb question, but will this work with a spikes dedicated upper as it is based on the atchison design?
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Quoted: sorry if this is a dumb question, but will this work with a spikes dedicated upper as it is based on the atchison design? Yes, it will work just fine |
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Does it work with a Magpul B.A.D? It uses your stock bolt catch so one with a BAD lever attached will fit just fine, but we have not tested it with BAD lever yet to see if the extra mass effects anything. |
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If I have your BHOA installed in my lower, would the older CMMG or BDM magazines with the old LRBHO followers still function? This can be used with the LRBHO. The mag will keep the bolt back until it is removed. How about the other way around? Can you use the new mags or modified BCM mags in rifles that don't have the BHOA plate installed. Obviously the bolt catch wouldn't function without the plate, but other than that will the new mags function. Or would you have to keep some old or unmodified mags to work on rifles that may not have a plate installed? |
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Quoted: Quoted: Quoted: If I have your BHOA installed in my lower, would the older CMMG or BDM magazines with the old LRBHO followers still function? This can be used with the LRBHO. The mag will keep the bolt back until it is removed. How about the other way around? Can you use the new mags or modified BCM mags in rifles that don't have the BHOA plate installed. Obviously the bolt catch wouldn't function without the plate, but other than that will the new mags function. Or would you have to keep some old or unmodified mags to work on rifles that may not have a plate installed? Yes, the modified mags will work with out the BHOA in place. Once the last round is fired the bolt closes on an empty chamber. I did forget to mention, we will be offering a version of the BHOA that will not have the transfer bar. The housing stabilizes the top of the magazine by holding it captive. This housing only stabilizer will work with either the modified or unmodified mags as well. |
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Thanks, that is great.
Again, nice work - I certainly didn't expect this solution in the near future. |
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Will the follower and spring fit in your 10 and 15 round mags by trimming the spring?
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At this point the capacity is same. With final tooling, we are seeing about the possibility of getting one extra round in. I have a Spikes upper, and using BDM 15 round magazines... being I live in NJ. The magazines have the red last round bolt hold. Would switching to your followers be ok, being any extra rounds in the magazine is a big problem here? I've wanted that feature in my Spikes upper ever since I got it, and I'd order one as soon as it is available, but that is a big thing. |
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Bastards!
Always finding new ways to take my money. Maybe congress should look into limiting innovation. |
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Does it work with a Magpul B.A.D? It uses your stock bolt catch so one with a BAD lever attached will fit just fine, but we have not tested it with BAD lever yet to see if the extra mass effects anything. Thats what I was wondering. |
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Quoted: Quoted: Quoted: Does it work with a Magpul B.A.D? It uses your stock bolt catch so one with a BAD lever attached will fit just fine, but we have not tested it with BAD lever yet to see if the extra mass effects anything. Thats what I was wondering. Worst case scenario it will just need a little tweaking. We made a provision to accommodate a spring between the housing and transfer bar of the BHOA. The additional spring pressure, combined with the spring pressure from the mag will be more than enough to activate it. We abandoned this for use with a standard bolt release because the mag spring by itself had plenty of strength. |
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Sounds fantastic!!
Will this hold up to single loading directly into the chamber ie indoor small bore single shot, mini palma etc? Would it be difficult to use that way? Would any of the parts wear out quickly having the bolt stay open on each shot? Thanks!! |
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