RA Tech New 2015 Version CNC Machined Steel Bolt Carrier for WE-Tech M4 / M16 Airsoft GBB Rifles - Black Other Magazines - Ambidextrous controls - magazine

- Ambidextrous controls - magazine release

An HPA conversion will allow you to adjust muzzle energy on the fly

Built-in NATO Military Standard 7

5" is as real as it gets

The inner barrel design ensures all shots exits the tube

RA Tech New 2015 Version CNC Machined Steel Bolt Carrier for WE-Tech M4 / M16 Airsoft GBB Rifles - Black Other Magazines - Ambidextrous controls - magazineHeavy duty precision CNC machined steel construction Weather resistant matte parkerized finish Heavy weight for added recoil New reinforced gas key Reinforced steel bolt stop included Compatibility: For WE Tech M4 M16 Airsoft GBB RiflesMaterial: SteelManufacturer: RA Tech