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Originally Posted By MackDaddy1962:
I'll do just that.I know the VV 3MOA mounted on the UTG .5" riser is 2.48oz, on the UTG .75" riser it's 2.54oz. http://media.fotki.com/1_p,rtdfqtgrbgwfsrgxwqqwkgwdrkw,vi/rqfqbsgwdxwrbgqqbtqxbrstgdrkk/2/17642/14225373/58512160778465-vi.jpg Edit: VV with factory installed pic base is 1.62oz View Quote Do you have a weight on the VV without the factory mount? From what I have been able to research, the Venom supposedly can use the same bases as FastFire 3, so I am trying to find the lightest reliable base that would work with a FastFire 3 (and therefore Venom). |
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Something about something, probably sounding really deep, but not really. - Someone Intellectual
Benefactor Member of the ARFCOM Science Foundation |
Originally Posted By Bedouin2W:
Thank you very much. I think I am going to go with a pistol-style RDS on a riser for my semi-LW build (estimating 5.42 lbs right now) and am trying to consider all my options. View Quote scalar works ldm quick detach, fits T1/H1 and PA micro dots. With a PA red dot, optic and mount weighed in at ~5 oz total on my scale. Wrote the exact down somewhere but I've moved papers around since then. |
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Originally Posted By Aimless: You're calling each other names at 8 on a sunday in a thread about ancient rome. smiley_freak.gif
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Originally Posted By Bedouin2W:
Thank you very much. I think I am going to go with a pistol-style RDS on a riser for my semi-LW build (estimating 5.42 lbs right now) and am trying to consider all my options. Maybe @jekbrown or someone else can add those weights to the LW parts list sheet? I would, but I cannot access google docs on this network. Do you have a weight on the VV without the factory mount? From what I have been able to research, the Venom supposedly can use the same bases as FastFire 3, so I am trying to find the lightest reliable base that would work with a FastFire 3 (and therefore Venom). View Quote |
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Own AR parts and a scale? Support the arfcom parts weights database. Please! http://www.ar15.com/forums/t_3_118/707652_AR-Parts-Weights-Database.html
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I have a Vortex Venom that is still in the box. It weighs 29 grams with battery, no mount. Not sure if the two screws are included in the VV weight or the mount, but they add one gram, so 30 g with screws.
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KAK 6.25" 300blk barrel
Aero Precision M4E1 upper Aero 7" quantum keymod cut down to 6.25" Troy PDW stock and BCG w/aluminum buffer weights Seekins adj gas block Magpul K2 grip (w/plug...I gotta keep a copy of the stamp somewhere) Aero lower Hiperfire 24c trigger All totalling 4lb 11.5oz Waiting for the suppressor (~13oz) And an optic (Vortex Sparc 2 @ 6oz) Which should meen a 5lb 14oz gun , suppressed with an optic Attached File |
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Nice job 74 Novaman. And I'm with ya, keep the ambi-selector. I'm a lefty too! Function over fashion.. period!
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Originally Posted By Bedouin2W:
Thank you very much. Do you have a weight on the VV without the factory mount? From what I have been able to research, the Venom supposedly can use the same bases as FastFire 3, so I am trying to find the lightest reliable base that would work with a FastFire 3 (and therefore Venom). View Quote Rock on |
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Just received a Proof Research carbon fiber barrel for a 300 blackout build. The barrel is 16" in length and weighs in at 23 ounces. Not the absolute bottom of the scale for barrel weights, but likely the best at keeping a rigid barrel for precision builds. Naturally this comes at a significant price, but anyone chasing lightweight parts already knows this game well. They have a larger profile if you're primary concern is precision over weight savings.
I also swapped out several Mag Tactical magnesium upper receivers for V7 Weapon Systems 2055 lithium aluminum uppers. The Mag Tactical uppers had a V7 lightweight forward assist installed, but no dust cover/pin and came in at 5.55 ounces. The V7 Weapon Systems unit doesn't have a forward assist, and without the door/pin installed, the unit weighed in at 5.90 ounces. I have several samples, and each has a +/- variance of around 0.15 ounces. During high speed camera testing of the uppers, we noted that the magnesium upper receivers permitted the barrel to flex significantly more than the lithium aluminum ones. Same rail, same barrel nut. Same torque spec was hit. Same barrel nut grease. Units were tested on the same lower. The uppers were both faced with a lapping tool. With the magnesium uppers, you could see a significant amount of flex reverberate from the barrel through the upper. In my opinion, the sub-half ounce weight difference isn't worth the strength and rigidity shown in the lithium aluminum. Given the fact that the magnesium uppers are hard to find, it's a no brainer to go with the V7. Their price point is high. I noted that even these high end V7 uppers still benefited from hitting them with the facing tool on the lathe. So just because you're buying top shelf, doesn't mean you can skip some of the accuracy wringing steps. These V7 uppers are an ideal host for using a JP Enterprises low mass bolt carrier paired and a JP Enterprises Silent Buffer. Match this with a good adjustable titanium gas block from say SLR and you'll have a winning combination that you can dial in for performance. |
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Nevermind... delete...
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Originally Posted By StrangerDanger:
Just received a Proof Research carbon fiber barrel for a 300 blackout build. The barrel is 16" in length and weighs in at 23 ounces. Not the absolute bottom of the scale for barrel weights, but likely the best at keeping a rigid barrel for precision builds. Naturally this comes at a significant price, but anyone chasing lightweight parts already knows this game well. They have a larger profile if you're primary concern is precision over weight savings. I also swapped out several Mag Tactical magnesium upper receivers for V7 Weapon Systems 2055 lithium aluminum uppers. The Mag Tactical uppers had a V7 lightweight forward assist installed, but no dust cover/pin and came in at 5.55 ounces. The V7 Weapon Systems unit doesn't have a forward assist, and without the door/pin installed, the unit weighed in at 5.90 ounces. I have several samples, and each has a +/- variance of around 0.15 ounces. During high speed camera testing of the uppers, we noted that the magnesium upper receivers permitted the barrel to flex significantly more than the lithium aluminum ones. Same rail, same barrel nut. Same torque spec was hit. Same barrel nut grease. Units were tested on the same lower. The uppers were both faced with a lapping tool. With the magnesium uppers, you could see a significant amount of flex reverberate from the barrel through the upper. In my opinion, the sub-half ounce weight difference isn't worth the strength and rigidity shown in the lithium aluminum. Given the fact that the magnesium uppers are hard to find, it's a no brainer to go with the V7. Their price point is high. I noted that even these high end V7 uppers still benefited from hitting them with the facing tool on the lathe. So just because you're buying top shelf, doesn't mean you can skip some of the accuracy wringing steps. These V7 uppers are an ideal host for using a JP Enterprises low mass bolt carrier paired and a JP Enterprises Silent Buffer. Match this with a good adjustable titanium gas block from say SLR and you'll have a winning combination that you can dial in for performance. View Quote |
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My build started a little less ambitious with a LaRue PredatAR barrel, then the disease set in. After the $$ spent on dropping weight elsewhere I decided the low dollar/ounce weight loss a barrel swap would provide would be stupid not to do. Installed a Faxon 16" pencil barrel today.
Attached File Attached File Attached File Attached File |
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Originally Posted By Redbirdxx:
My build started a little less ambitious with a LaRue PredatAR barrel, then the disease set in. After the $ spent on dropping weight elsewhere I decided the low dollar/ounce weight loss a barrel swap would provide would be stupid not to do. Installed a Faxon 16" pencil barrel today. https://www.AR15.Com/media/mediaFiles/461668/faxon-resized-178224.JPG https://www.AR15.Com/media/mediaFiles/461668/lightweight-no-optic-resized-178226.JPG https://www.AR15.Com/media/mediaFiles/461668/Lightweight-optic-and-light-178227.JPG https://www.AR15.Com/media/mediaFiles/461668/lightweight-loaded-with-sling-resized-178228.JPG View Quote |
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Originally Posted By lightpaw:
Nice! I've got a similar build with the Faxon 16" at 4lbs, but with poly lower, same stock and MBUS sights. AP 9" rails now on AP regular upper, moving to DSG or Aero slick upper. But while saving a couple of ounces in the upper, plans are to go to 12" guntech rails to cover superlative arms gas block, and possibly mag tech lower. May put me in 4.5lb range w/o mag or optics, and thread protector on. BCG is Aim LW, and 1 oz buffer. Tuned nicely for ~5 types of ammo, but still quite reduced gas. View Quote 4.5 is impressive (as are many of the guns in this thread). Mine's is probably now as light as it's going to get. Before I started I set down a few ground rules for myself related to reliability, durability and ease of use and I can't go any lighter without tossing some or all of them. The only thing left I'd really consider is a Balios Lite receiver set or similar, but that's a lot of coin for 3-4 ounces. |
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Updated pictures with links to google drive for my build I posted earlier.
Rifle with optic and BUIS 5lbs 8.1 oz Rifle with optic and no BUIS 5lbs 3.1 oz Optic 1 lb 1.4 oz BUIS 4.9 oz Rifle with no Optic or BUIS 4lbs 1.6 oz Upper with no sights 3lbs 1.9 oz Lower 15.7 oz Everything taken apart |
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Originally Posted By jekbrown:
we only need about 10 more people to make the Faxon 10.3" pencil bbl a reality people. It's 15oz and will likely be the lightest practical bbl one could buy for an AR if it is produced. We need 50 pre-orders for Faxon to make it. Who's gonna step up so we can get this done? http://www.ar15.com/forums/t_7_121/1597627_Faxon-10-3-Pencil-Barrels.html&page=1 View Quote Hasn't killed me yet. |
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Originally Posted By Nada-Nada:
It will be nice to have a off the shelf option, but just FYI, I have a 10.5 inch 556 barrel I had turned down to as pencil as would be safe by a professional barrel specialist shop - 11.3 ounces. Hasn't killed me yet. View Quote |
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Standard pencil is .550", only the gas block is .625.
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cola-warrior.com
#teamemily |
Originally Posted By JoshAston:
Standard pencil is .550", only the gas block is .625. View Quote (forehead slap) duh. Even looking at a pic of one you can tell that the bbl is thinner than the gas block area, so I dunno what I was thinking. Didn't know 550 was the exact # though. Makes me even less interested in going thinner... With just .163" of wall thickness to work with. |
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I've seen barrels as thin as .510 in front of the gas block. The chamber area is where the most weight can be lost though.
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cola-warrior.com
#teamemily |
Originally Posted By JerDerv:
Its a $25 Chinese version of the BAD. Its not a fixed stock rifle extension. Its for a .308 rifle that uses a carbine length buffer and telescopic stocks. I cut alot of weight off of it then made a nylon spacer so that the carrier cycle distance is the same as a normal carbine extension. Its a short length of pull, but the steep angle of the ergo swift grip makes it doable for sure. Sitting at 4lbs 9.9oz without mag. http://i.imgur.com/akrIWij.jpg View Quote |
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"Don't be upset by the results you didn't get with the work you didn't do."
Team Ranstad SpyderNation #0086 Fairfax County, VA CERT #86 |
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5.31 pounds. Added 1/2 pound for RMR-->ACOG, Aero-->KAC TDP lower, BAD-->CAR stock/buffer tube, V2-->V3 rail, K to SL grip. A much better carbine for my needs. Attached File
Attached File Attached File |
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Originally Posted By JerDerv:
Its a $25 Chinese version of the BAD. Its not a fixed stock rifle extension. Its for a .308 rifle that uses a carbine length buffer and telescopic stocks. I cut alot of weight off of it then made a nylon spacer so that the carrier cycle distance is the same as a normal carbine extension. Its a short length of pull, but the steep angle of the ergo swift grip makes it doable for sure. Sitting at 4lbs 9.9oz without mag. http://i.imgur.com/akrIWij.jpg View Quote Thanks in advance. :) |
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Originally Posted By Nada-Nada:Corrections, barrel is measured at 10" - ATF method, rod down barrel till it hits bolt face.
Not sure how I got this wrong it's actually 383 grams, 13.5 ounces. I must have measured and recorded the post turn down weight wrong in my spreadsheet. Barrel is .54 behind gas block, .51 in front of gas block. .977 in front of barrel extension. ~.647 long before slope down, ~1" slope down. So this is very close to the faxon 15 oz 10.3 barrel. This is .3 inches shorter, 1.5 ounces lighter. http://i.imgur.com/aeAJ6ek.jpg View Quote I've wondered how feasible it would be with a gas block like this... To leave the material that is contacted by the GB, but to machine out / reduce the amount of material on the journal where the GB isn't. Obviously the bbl would be married to the particular GB at that point, but bbls are a consumable item anyway, right? Definitely not practical for joe six pack for custom 1 off cost reasons, but for a joe sick pack that happened to be a machinist... |
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If you wanted to get crazy, once you pinned your gas block position, you could eliminate the shoulder for it.
You could also reduce barrel in front of the gas block to the minor diameter of the threads, I would imagine. |
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Originally Posted By detroitmike:
My google-fu isn't as strong as I thought... because I couldn't find a source for the cheapo Chinese BAD replica. Help a brother out with a link? Thanks in advance. :) View Quote http://shop.ehobbyasia.com/5ku-lightweight-butt-stock-for-m4-receiver-stock-pipe.html#.WOvsqr1lDYU |
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Originally Posted By Nada-Nada:
If you wanted to get crazy, once you pinned your gas block position, you could eliminate the shoulder for it. You could also reduce barrel in front of the gas block to the minor diameter of the threads, I would imagine. View Quote |
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"Success cannot be purchased with cash. Success must be financed, and you gotta make payments every single day if you wanna own that bitch."
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Originally Posted By Nada-Nada:
Here is a Supressed Build. I don't think I have seen one yet here. 5.8lb 300blk 8.5" Supressed SBR V7 2055 Chassis Thunderbeast Arms Ultra 5 (Full disclosure, this is not the actual supressor - I am waiting on it - this is the same length/weight) Items I could have removed for the purposes of this thread but did not: RMR/Scalar Mount 9 oz Supressor Surefire Scout with Remote Switch QD Sling Mount Items that could have been used to cut weight easily but were not to meet my build desires: CAR Fiberlight Stock Hogue Grip (Using BCM v3) Lighter / Shorter Handguard BAD Gas Block (Using SLR Adjustable) V7 Charging Handle (Using Gas Blocking Ambi) Pencil Profile Barrel (Using Heavy Profile Dimpled by Nefarious Arms) Spikes Light FCG (Using an exceptionally heavy POF) Light BCG (Using a JP Full Mass) So while this rig could be much much lighter, by goals on this one was a light weight as practical but still have all the trimmings and not compromise parts. I have a 3.7lb build I posted previously, and that one will soon be closer to 3lb than 3.7 with some parts updates - but this was a different kind of build. http://i.imgur.com/ucFyb6T.jpg http://i.imgur.com/BbgY9XM.jpg View Quote |
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Awesome build man!
Originally Posted By Jwood562:
Upper: Balios lite upper 14.5” Faxon pencil barrel V7 extended titanium flash hider SLR adjustable titanium gas block 9” BCM KMR rail V7 titanium KMR blocks Stitchclimber aluminum KMR barrel nut JP ultra low mass AL carrier Mil spec bolt Titanium firing pin V7 Cam pin V7 charging handle Sights: Bobro low riders weight: 39.60oz Lower Balios lite lower V7 Aluminum take down pins V7 ultra lite bolt catch V7 ultra light mag catch California bullet button :( V7 trigger and hammer pins Spikes tactical enhanced battle trigger JP speed hammer (reduces weight and wear on aluminum BCG) V7 aluminum safety with titanium core V7 titanium buffer retainer Tubbs flatware light weight buffer sing Empty carbine buffer Smoke composites closed stock Smoke composites castle nut New Houge pistol grip Titanium grip screw weight: 16.85oz or 480g complete weight 3.53125 lbs http://i303.photobucket.com/albums/nn158/jwood562/IMG_8841_zpszgiwwatk.jpg View Quote |
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Originally Posted By Watarski:
What rail is this? View Quote 1.6 ID, just barely enough to fit the 1.5" OD Suppressor. In fact I sanded down the M Lok Nuts and for the light, switch and qd to give maximum clearance. Anyone that has built a supressor under the guard type build knows the choices are few to get the right fit. And it's often difficult getting all the data. In any event I considered many over time: Lancer Carbon Fiber Faxon Streamline Carbon Samson Evolution Keymod Odin Works is good so far, I wish it had attachment methods at the 45s though so I could put panels on or even the light, but will make it work for now. |
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Originally Posted By Jwood562:
Upper: Balios lite upper 14.5” Faxon pencil barrel V7 extended titanium flash hider SLR adjustable titanium gas block 9” BCM KMR rail V7 titanium KMR blocks Stitchclimber aluminum KMR barrel nut JP ultra low mass AL carrier Mil spec bolt Titanium firing pin V7 Cam pin V7 charging handle Sights: Bobro low riders weight: 39.60oz Lower Balios lite lower V7 Aluminum take down pins V7 ultra lite bolt catch V7 ultra light mag catch California bullet button :( V7 trigger and hammer pins Spikes tactical enhanced battle trigger JP speed hammer (reduces weight and wear on aluminum BCG) V7 aluminum safety with titanium core V7 titanium buffer retainer Tubbs flatware light weight buffer sing Empty carbine buffer Smoke composites closed stock Smoke composites castle nut New Houge pistol grip Titanium grip screw weight: 16.85oz or 480g complete weight 3.53125 lbs http://i303.photobucket.com/albums/nn158/jwood562/IMG_8841_zpszgiwwatk.jpg View Quote |
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She's under 6 with the A2 FH but I've designated it as my girlfriend's gun and she loves shooting suppressed so the beefy ASR FH is on in the pic. I'm not taking it off just to take a pic for you losers. I wish they had a lighter option.
https://flic.kr/p/TPn3P9 Scoped setup, turns it into quite the versatile rifle and still quite light: https://flic.kr/p/V6QyTR |
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Attached File
Five pounds, on the cheap. Faxon pencil 16" barrel, 3-prong FS turned down, BTE adj. gas block, guntec 10" octagonal rail, Aero no FA upper, AIM LW BCG, regular lower and internals, cut-down PSA A2 grip, regular buffer tube, spring, and buffer (gutted to 0.9 oz), MFT minimalist stock, holosun 403 sight, melonite gas tube, and mil spec CH. Could have saved a little weight and money with a fiberlite-type stock, but I wanted a non-slip buttplate. |
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Originally Posted By SlappyT1:
http://i929.photobucket.com/albums/ad132/fbodyreefer/be162d4e-069a-46b2-9985-f9516f2a975d.jpg 4.74 Lbs BAD Upper, KMR-13 w/ V7 barrel nut and clamp block, Faxon 14.5 Slimline w/ FH, V7 Gas Block, V7 air door, Mod 5 CH, 2A Adj BCG, Bobro lowriders, Aimpoint T2 w/Scalarworks mount BAD Lower, 2A Take Down Pins, Geiselle SD-C w/ SD-E spring and V7 pins, V7 3g Ambi Safety, V7 bolt catch, V7 Mag Release, Houge 15d grip w/ V7 screw, carbine buffer, Sprinco white, V7 endplate/castle nut, PWS mod 2 buffer tube, minimalist stock View Quote |
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A pleasure to serve as the Director at Faxon Firearms
www.faxonfirearms.com Instagram: @faxonfirearms Ask us any questions or drop me an e-mail: [email protected] |
Originally Posted By SlappyT1:
http://i929.photobucket.com/albums/ad132/fbodyreefer/be162d4e-069a-46b2-9985-f9516f2a975d.jpg 4.74 Lbs BAD Upper, KMR-13 w/ V7 barrel nut and clamp block, Faxon 14.5 Slimline w/ FH, V7 Gas Block, V7 air door, Mod 5 CH, 2A Adj BCG, Bobro lowriders, Aimpoint T2 w/Scalarworks mount BAD Lower, 2A Take Down Pins, Geiselle SD-C w/ SD-E spring and V7 pins, V7 3g Ambi Safety, V7 bolt catch, V7 Mag Release, Houge 15d grip w/ V7 screw, carbine buffer, Sprinco white, V7 endplate/castle nut, PWS mod 2 buffer tube, minimalist stock View Quote |
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Originally Posted By SlappyT1:
http://i929.photobucket.com/albums/ad132/fbodyreefer/be162d4e-069a-46b2-9985-f9516f2a975d.jpg 4.74 Lbs BAD Upper, KMR-13 w/ V7 barrel nut and clamp block, Faxon 14.5 Slimline w/ FH, V7 Gas Block, V7 air door, Mod 5 CH, 2A Adj BCG, Bobro lowriders, Aimpoint T2 w/Scalarworks mount BAD Lower, 2A Take Down Pins, Geiselle SD-C w/ SD-E spring and V7 pins, V7 3g Ambi Safety, V7 bolt catch, V7 Mag Release, Houge 15d grip w/ V7 screw, carbine buffer, Sprinco white, V7 endplate/castle nut, PWS mod 2 buffer tube, minimalist stock View Quote |
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