ASK AN EXPERTDescription
- 8.1" Cold Hammer Forged Barrel
- DIN 21CrM0V511
- 1/7 Twist Rate
- 1/2x28 Thread Pitch for Muzzle
- 5.56 NATO Chamber
- .750 Gas Block Seat
- M4 Feed Ramped Barrel Extension
- Black Nitride Inside and Out
The SPIKE'S TACTICAL AR-15 5.56mm 8.1in Cold Hammer Forged Barrel (SB50810-PL) is extremely durable with a 20,000+ round service life and features Spikes Tactical's new Optimum barrel profile. It has a .750" gas block seat with a properly sized gas port and the muzzle is threaded perfectly concentric to the Bore with 1/2x28 threads.
The barrel is made to military specifications for the M249 SAW. The cold hammer forging process work-hardens the steel around a rifled mandrel, which creates the lands and grooves.
The barrel blanks are the correct certified CMV material and they are Nitrided to provide a harder-than chrome surface. The result is a rifle that can be run hard day after day! Each barrel is high pressure tested and magnetic particle inspected.
Warranty Information
| Barrel Length, in | 8.1" |
| Barrel Contour | Medium |
| Caliber | 5.56 NATO |
| Feed Ramps | M4 |
| Gas Seat Diameter | .750 |
| Gas System Length | Pistol |
| Fits | AR-15 |
| Thread Pattern | 1/2x28 |
| Twist Rate | 1:7 |
| Barrel Material | 41V50 Chrome Moly Vanadium Steel |
| Barrel Coating | Salt Bath Nitride |
| Barrel Lining | Salt Bath Nitride |
| Weight, oz | 13.5 |
