BUSHMASTER® M4A3 PATROLMANS CARBINE UPPER ASSEMBLY•Similar to the M4-type carbine but w/additional barrel length •4150 chrome moly-vanadium steel barrels features hard chrome lining in bore & chamber •Forged, lightweight 7075-T6 aircraft-quality aluminum & M16A2-designed receiver includes integral brass deflector, bolt catch assembly & raised ribs •Hard anodized finish •Factory headspaced, test-fired & ready-to-use
Specifications
| Brand | Bushmaster |
| Caliber | 556NATO |
| Model | M4A3 |
| Type | Upper |