So you just built a larger-sized AR chambered in either .308 Winchester, 6.5 Creedmoor, or even .243 Winchester, but you know what? Unless you want it to be nothing more than a replica or a life-sized prop, you're gonna need to install the guts too, to get it to function. The "guts" of the upper assembly (upper half) are simple: you need a bolt carrier group to slam into your upper from behind.
This is the BCG you need for you larger-sized AR. Each one has been magnetic particle-inspected (MPI tested) and comes in a parkerized / black nitride finish to match the rest of your rifle. It's made from 9310 steel and has a staked gas key, so you can keep chucking rounds downrange without worrying about your insides rattling loose. See below for more info.
Specs:
- Caliber / Gauge: .308 / 6.5 Creedmoor / .243 Winchester
- Carrier Style: Standard
- Platform: AR-10
- Bolt Finish: Parkerized
- Bolt Material: 9310 Steel
- Carrier Finish: Black Nitride
- Gas Key: Staked
- Magnetic Particle Inspection: Yes
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
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80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Platform:
- AR10
