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.
- 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
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