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Mil-Spec Black Nitride 308 Bolt Carrier Group BCG MPI HPT Fits Ar-10 Rifles
109.9900

Mil-Spec Black Nitride 308 Bolt Carrier Group BCG MPI HPT Fits Ar-10 Rifles

Special Price $109.99 Regular Price $129.99

Looking for that low cost mil-spec 308 bcg thats been MPI and HP tested.....here's your shit.

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Availability:In stock
Description

Mil-Spec Bolt Carrier Group:

- Material:  Case Hardened 8620 Steel

- Finish:  Black Nitride.  This advanced low friction coating minimizes the need for lubricants

- Gas Key:  4130 Steel attached with Grade 8 hardware and properly staked into a milled “valley” to ensure proper positioning

- Cam Pin:  Hardened 4340 cam pin

- Firing Pin:  Mil Spec firing pin made of 8740 steel, center-less ground and Hard Chrome coated

Bolt Specs:

- The Bolt is “true” Mil Spec dimension and external surfaces are CNC ground after heat treat for a precision fit

- Material: Case Hardened 9310 Steel

- Finish:  All Bolt components Shot Peened and Manganese Phosphate or Black Nitride

- Extractor: 4340 Steel , Manganese Phosphate coated

- Mil Spec Extractor Spring & O-Ring Combination

- MPI:   Magnetic Particle Inspected

- HPT:  High Pressure Test

Made in USA

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