Description:

A Nickel Boron coated bolt for your AR-15. Works with 6.8 SPCII cartridges. High quality 9310 steel bolt. Tight piston rings for correct function and minimal gas leakage. MPI tested bolt. A pristine and reliable bolt for your AR-15 rifle!

Advantages of Nickel Boron:

• Harder surface results in less wear
• Reduced Friction
• Reduced Heat
• Operates with little to no lubricant
• Easy to Clean