Out of stock!
Enter your email to be informed when this product arrives:


Send Close
Out of stock!
Enter your email to be informed when this product arrives:
Send Close

MicroBest BCG 556 Phosphate C158 MPI +Sprinco +Oring

Brand: MicroBest
Product Code: 4514601
Availability: In Stock
$130.00
$89.95

 SHIPS TO YOU FRIDAY 4/12/24 OR EARLIER

Bolt Carrier:
Heavy Duty M16 design
8620 steel heat treated
Gas Key Material - 4140 heat treated
Grade 8 Gas Key Screws, Staked
Chrome lined gas key and carrier interior
Manganese Phosphate per mil spec

Bolt Subassembly:
Bolt: 158 Carpenter Steel, shot peened per mil spec
MPI tested
Ejector Pin: S7 mil spec
Extractor: 4340 mil spec
Extractor Pin: S7 mil spec

Extractor Spring: Sprinco 25405 Tactical Springs LLC M4 / M4-A / AR-15 / M16 Enhanced Power 4-Coil Bolt Extractor CS Spring
O-Ring: Mil Spec
Gas rings (3): Mil spec
Manganese Phosphate per mil spec

Cam Pin:
4340 mil spec
Manganese Phosphate per mil spec

Firing Pin:
Mil spec centerless ground 8740 steel, hard chrome coated

Write a review

Your Name:


Your Review: Note: HTML is not translated!

Rating: Bad           Good

Enter the code in the box below:



payment
WCArmory © 2024