A2 flash hider (M4 / AR-15 factory)
Colt's Manufacturing Company · Muzzle Device · Model A2
The closed-bottom birdcage flash hider fitted to the M16A2, M4 and most factory AR-15 carbines. Threads onto a 1/2-28 muzzle with a crush washer. Reduces flash and directs some gas upward; it is not a compensator.
Specifications
| Bore diameter | 5.7 mm |
| Model number | A2 |
| Introduced | 1983 |
Mounting
Needs 1/2x28 at the Muzzle position.
Rated calibers
- 5-56x45mm-nato - full-auto rated
- 223-remington - full-auto rated