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bolt carrier group
A bolt is the part of a repeating, breechloading firearm that blocks the rear opening (breech) of the barrel chamber while the propellant burns, and moves back and forward to facilitate loading/unloading of cartridges from the magazine. The firing pin and extractor are often integral parts of the bolt. The terms "breechblock" and "bolt" are often used interchangeably or without a clear distinction, though usually, a bolt is a type of breechblock that has a nominally circular cross-section.
In most automatic firearms that use delayed blowback, recoil or gas operation, the bolt itself is housed within the larger bolt carrier group (BCG), which contains additional parts that receives rearward push from a gas tube (direct impingement) or a piston system.
The slide of a self-loading pistol can be considered a bolt carrier, as it contains the same components and serves the same functions.
Have a few extras I don't need so figured I'd toss them up for sale.
Aero BCGs:
2 x Phosphate w/ C158 Bolt, No logo - $115 each
Aero Uppers:
5 x AR15 Assembled Upper Receiver - $105 each
Cash, Electronic payment, or USPS Money Order
Let me know if you have any questions!
5.56/.300blk etc.
This was on a build i swapped for a traditional rear charge upper.
its super beefy looking
I bet it can take a lot of abuse.
Its looks would go really well on a billet lower
Very low round count, maybe 200.
Nevermind the pics of it all taken apart its back together
Port...
Ddm4v7 upper 14.5 non p&w surefire war comp
Dd bcg
Radian charging handle
Daniel defense marked upper
Two mags fired through
Will add irons for 750 total
700 without irons
I bought this new. I had it on my wish list but kept missing it whenever it came into stock. After about 1 year I snagged this one for $629 direct from PSA. I briefly installed a BCG [not included]and put it on a braced lower. I never even had time to buy an optic and FJB/AFT came along with...
This is a complete setup, ready to drop on a pistol or SBR lower and shoot. I know the market on these is out of whack thanks to FJB and the AFT brace fiasco. However, I tried to price it fairly considering what's included. Here's what you will get:
PSA 10.5 barreled upper chambered in 300...
Both new and never been out of original packaging. Bought these for a build that never happened.
Ballistic Adv BABL224V04PL AR Barrel Premium 224 Valkyrie 18" AR-15 416R Stainless Steel Bead Blasted DMR Rifle Length Fluted
Aero Precision AR15 .224 Valkyrie/6.8 SPC Bolt Carrier Group (BCG)...
Want a gas piston setup but it's too cost prohibitive?
This kit will get you up and running with one.
All you need is a complete lower assembly, a mil-spec upper receiver, and a barrel with a mid-length gas port.
If you run a suppressor, this kit could work on a barrel as short as 12.5...
Getting out of the Large Frame AR game.
-Aero FDE M5 Enhanced Assembled Upper
-Aero FDE 16.6” FDE M5 Enhanced Mlok Rail
-Brownells .308 nitride BCG
-PRI M84 Large frame gas buster charging handle
$550 for everything
I also have a complete lower and Criterion 6.5 creedmor barrel listed if...
Brand new in box with paperwork, need more money for parts or trade for parts.
1. Rise Armament RA-1012 .308 BCG Nitride. - $200 ( DPMS )
- Free AR10 charging handle with BCG purchase.
Trades: +/- cash either side.
- CHF barrel 5.56/.223 16" FN, ST, DD
Ammo- 9mm, .45acp, 10mm, 5.56, .308.
I have 2 m4e1 receivers and 2 bcg's
all are brand new
Id like to get 400 shipped for all 4 of them together
I accept paypal friends and family otherwise add 4%
Any questions please IM me only
And used but in functionally perfect condition. I switched to a low pro piston system, and no longer need this one. It runs great. Easy to install. Bolt is in immaculate condition. Take it all for $125.
Prefer local pickup in Sumner or Puyallup. Will ship for $15. Trades for AR barrels or DI...