Product Description
MCS AR-15 5.5″ 5.56mm 1:5 Twist Contour 4150 Barrel With Gas Tube - Rainbow PVD Coated
- 4150 Chromoly Steel
- 5.56/.223 Chambered in 5.56×45
- 1/2 by 28 Thread
- 1:5 Twist
- Contour Profile
- Markings Spiral Engraved Near Break
- Custom Short Gas Tube Included
- M4 Feed Ramps
- Micro Pistol Length Gas System
- Matte Rainbow PVD Coated Finish
