Colt M4 M4A1 AR-15 Barrel 5.56x45 NATO 14.5 Government Contour 1:7 Twist Low Profile Gas Block
by Colt
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Colt M4, M4A1 AR-15 Barrel in 5.56x45mm NATO. It features a 14.5" government contour with a 1:7 twist and a matte finish, paired with a low-profile gas block. The true 5.56x45mm NATO chamber accepts both commercial and military surplus ammunition, and the 1:7 twist stabilizes lighter to mid-weight projectiles up to about 77 grains.
Specifications
- Manufacturer:
- Colt
- Category:
- barrel
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- Length:
- 14.5"
- Estimated velocity:
- 2,650-3,025 fps
- MPN:
- SP401760
- Required Component:
- Yes
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