Next Level Armament Nextride AR-15 Upgrade Bolt 5.56 / .223 / 300BLK
The Next Level Armament bolt assembly is precision machined from 4140 steel to specific U. S. military specifications and is shot peened for unsurpassed strength and durability. complete with a precision machined tool steel extractor, extractor spring, and every single one is Magnetic Particle Inspected (MPI), High Pressure Tested (HPT) and is marked MPI.
The Nextride Treatment provides improved function and operation via several key improvements – AMS 2753 specifications – Pyromtery per AMS 2750 – Hardness 52-58 HRc – Improves fatigue strength – Exceptional Lubricity – Low coefficient of friction – Improved Wear Resistance – Improved Corrosion Resistance – Resistance to weld spatter – Holds dimensional requirements with little or no distortion – Nice matte black color – Metal treatment (not a coating). The nextride finish provides superior lubricity and hardness, and the expanded rear of the carrier allows for smooth cycling in the buffer tube. Major internal parts are nextride treated, including the firing pin, cam pin and extractor.
- Manufactured to U. S. Military Specification from Carpenter No. 158® Steel
- MPI Bolt (Magnetic Particle Inspected)
- HPT Bolt (High Pressure Tested)
- Precision Machined & Shot Peened Bolt
- Tool Steel Extractor
- Spring Steel Extractor Spring
- Black Extractor Insert
- Mil-Spec O-Rings
- .223, 5.56 & 300 Blackout
- Nextride Treatment