| I’m looking to buy a lightweight factory AR-10 in 6.5 CM and was considering either the 2A XLR-20 ir a Christensen Arms CA-10. Anyone have a recommendation for either? Are there other choices I’m missing? Budget is $3k. Thanks! |
Which lightweight AR10?
- Thread starter Mindreader1
- Start date
Any reason why you aren't willing to build or have one built for you by ADCO or an LGS? You can go lighter with the 2a Armament receivers and other lightweight parts but still very accurate and low recoil with a Proof barrel and Superlative Arms AGB.
XO Carbon (.308) .308 Winchester 8.2 lbs
XO Carbon (.260/6.5) 6.5 Creedmoor
https://www.nemoarms.com/rifles/xo-carbon-26065
my favorite ( but need to find light weight scope !!! )
https://www.nemoarms.com/rifles/xo-carbon-308
XO Carbon (.260/6.5) 6.5 Creedmoor
https://www.nemoarms.com/rifles/xo-carbon-26065
my favorite ( but need to find light weight scope !!! )
https://www.nemoarms.com/rifles/xo-carbon-308
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Need to price them out but I can get either OEM rifles for around $2700-$2800. Not sure how much the parted out build would cost. Would also lose warranty for custom build and maybe future resale if I ever sell it again?
So this thread will be of great interest: http://www.m4carbine.net/showthread.php?181495-New-Ultra-Lite-AR308-build Basically a guy who was a member here (but during scout) built a 4.8lbs AR10 that (he claimed) still shot 1moa. He gives the list in that thread.
I will copy-past here:
Upper Parts:
2A Armament Xanthos Upper receiver 7075 T6 @ 9.00 ounces
X-Caliber 416R 16 inch fluted barrel @ 31.3 ounces
2A titanium gas block @ 0.60 ounces
Gas tube mid length @ 0.80 ounces
titanium muzzle brake @ 0.65 ounces
Clark Custom Aluminum barrel nut @ 1.18 ounces
AR 308 carbon fiber hand guard 1.60 ounces in mid length 10.5 inches
Toolcraft Titanium 308 BCG @ 11.80 ounces with ti firing pin
Vltor charging handle @ 1.25 ounces
Lower Parts: Total weight 18.60 ounces with SSA-E trigger
2A Armament Xanthos lower @ 7.30 ounces
Mag Pul K grip @ 1.7 ounces
V7 titanium grip screw 0.113 ounces
V7 Mag catch aluminum 0.173 ounces
V7 Aluminum/titanium selector 90 degree 0.293 ounces
V7 aluminum AR 308 takedown pins 0.26 ounces
V7 tool steel bolt catch 0.31 ounces
Smoke Composite stock 3.3 oz.
AR308 carbine buffer (no weights) 0.85 oz.
NF polymer trigger group 0.65 oz with titanium trigger pins
SSA-E trigger group 2.6 ounces with titanium trigger pins
DPMS carbine buffer spring @ 1.5 ounces
Titanium buffer retainer, mag catch plunger
4.8lbs total.
Now this is a good list, but there are now even better options which I'll go through:
For the barrel, you can try a lightweight X-Caliber or CLE Bartlein or Krieger, where essentially you just have them create a very lightweight contour. OR you can buy a Proof Research, Christensen Arms, or other CF barrel (C3, Hardy, Carbonsix, BFS, etc.) which will weight about the same but be more rigid, generally yielding more accuracy per ounce. However they cost almost 2x as much, so really you need to decide how much accuracy is worth to you for this lightweight build. If you can settle for around 1moa go with steel, if you want more the Proof CF wrap would be my choice while keeping it light.
For the gas block, you really want an adjustable. If you want to keep it almost as light, snag the SLR Rifleworks TI AGB. Otherwise grab the cheaper and actually better Superlative Arms clamp on agb (just a bit heavier).
OP Here went with a Clark Custom CF handguard, which is great for weight but if you want to add anything more than a bipod and sling isn't what you want. If you need more attachment points, Odinworks, Midwest Industries, Lancer, and ESPECIALLY Brigand Arms all produce lightweight AR10 (dpms high standard for Xanthos) handguards.
For the BCG, there are many good TI AR10 BCGs including RCA and V7, but also consider the JP Lomass which is almost as light and not as expensive if you want to save a bit of $$$.
As for the lower, you can save a lot of money and pick up minimal (like 1-2oz max) weight by going with standard lower parts instead of TI if you want to put more money into the barrel instead.
I'd also get a ELF trigger instead but the difference is minimal. Also if you want to save money here you can always go with a Hiperfire EDT.
Let me know if you have any questions!
I will copy-past here:
Upper Parts:
2A Armament Xanthos Upper receiver 7075 T6 @ 9.00 ounces
X-Caliber 416R 16 inch fluted barrel @ 31.3 ounces
2A titanium gas block @ 0.60 ounces
Gas tube mid length @ 0.80 ounces
titanium muzzle brake @ 0.65 ounces
Clark Custom Aluminum barrel nut @ 1.18 ounces
AR 308 carbon fiber hand guard 1.60 ounces in mid length 10.5 inches
Toolcraft Titanium 308 BCG @ 11.80 ounces with ti firing pin
Vltor charging handle @ 1.25 ounces
Lower Parts: Total weight 18.60 ounces with SSA-E trigger
2A Armament Xanthos lower @ 7.30 ounces
Mag Pul K grip @ 1.7 ounces
V7 titanium grip screw 0.113 ounces
V7 Mag catch aluminum 0.173 ounces
V7 Aluminum/titanium selector 90 degree 0.293 ounces
V7 aluminum AR 308 takedown pins 0.26 ounces
V7 tool steel bolt catch 0.31 ounces
Smoke Composite stock 3.3 oz.
AR308 carbine buffer (no weights) 0.85 oz.
NF polymer trigger group 0.65 oz with titanium trigger pins
SSA-E trigger group 2.6 ounces with titanium trigger pins
DPMS carbine buffer spring @ 1.5 ounces
Titanium buffer retainer, mag catch plunger
4.8lbs total.
Now this is a good list, but there are now even better options which I'll go through:
For the barrel, you can try a lightweight X-Caliber or CLE Bartlein or Krieger, where essentially you just have them create a very lightweight contour. OR you can buy a Proof Research, Christensen Arms, or other CF barrel (C3, Hardy, Carbonsix, BFS, etc.) which will weight about the same but be more rigid, generally yielding more accuracy per ounce. However they cost almost 2x as much, so really you need to decide how much accuracy is worth to you for this lightweight build. If you can settle for around 1moa go with steel, if you want more the Proof CF wrap would be my choice while keeping it light.
For the gas block, you really want an adjustable. If you want to keep it almost as light, snag the SLR Rifleworks TI AGB. Otherwise grab the cheaper and actually better Superlative Arms clamp on agb (just a bit heavier).
OP Here went with a Clark Custom CF handguard, which is great for weight but if you want to add anything more than a bipod and sling isn't what you want. If you need more attachment points, Odinworks, Midwest Industries, Lancer, and ESPECIALLY Brigand Arms all produce lightweight AR10 (dpms high standard for Xanthos) handguards.
For the BCG, there are many good TI AR10 BCGs including RCA and V7, but also consider the JP Lomass which is almost as light and not as expensive if you want to save a bit of $$$.
As for the lower, you can save a lot of money and pick up minimal (like 1-2oz max) weight by going with standard lower parts instead of TI if you want to put more money into the barrel instead.
I'd also get a ELF trigger instead but the difference is minimal. Also if you want to save money here you can always go with a Hiperfire EDT.
Let me know if you have any questions!
Personally I'm not sold on CFW barrels being any more accurate than a top tier light contour steel tube.. jmho. The CFW deals do look baller though.
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