Description:

Black phosphate bolt and auto carrier for 5.45x39 cartridges. High quality mil-spec+ with properly staked gas key. 9310 steel bolt with an 8620 steel carrier. Tight piston rings for correct function and virtually no gas leakage. MPI tested bolt. A pristine and reliable BCG for your AR-15 rifle!

Product Features:

• 9310 Steel Bolt - MPI/HPT Tested
• 8620 Steel Carrier
• Properly Staked Gas Key
• Chrome Lined Carrier
• Chrome Lined Gas Key
• Correct Piston Ring Tightness
• Heavier M16 (Auto) Carrier

Firing Pin (5.45x39):

There are two options for firing pins for this 5.45x39 bolt carrier group:

Standard: Same length as the mil-spec firing pin. Choose this if you plan to use USA made 5.45x39 ammunition only. Note: It is possible for the standard firing pin to not sucessfully ignite surplus/foreign made ammunition on the first strike due to the differrence in primers.

Enhanced: Firing pin pertrudes from the bolt slightly more than the standard firing pin. Choose this if you plan on shooting surplus/foreign made 5.45x39 ammunition only. Note: It is possible for the enhanced firing pin to puncture through USA made ammunition due to extended length. Heavy hammer spring may be required in addition to the enhanced firing pin depending on the type of ammunition.

We recommend that you purchase both firing pins so all types of ammunition can be fired through your rifle optimally.

Detailed Specs:

Coating: Phosphate

Weight: 11.7 Oz.