Mag Phos Bolt Carrier Group (BCG), HPT/MPI Spec (223/5.56) AR-15/M16 Full Auto

Product Description

Description:

CTS product line was developed primarily for the US Government / Professional Market. The civilian market is a secondary benefactor to this program. As such the QC standards and priorities (and features) are very different than that of a commercial market AR15 manufacturer. To the very overwhelming majority of shooters, this is a huge plus in the column. It makes their product and extremely attractive option for a civilian shooter looking for a higher standard of product.

Specifications:

Bolt Carrier

• Mil-Spec 8620 tool steel M16 bolt carrier w/shrouded firing pin.
• Carrier has 5.3.1.2 MIL-STD-171 phosphate finish inside and out with 1.2.2.2 MIL-STD-171 hard chrome bore and carrier key.
• Mil-Spec tool steel carrier key.
• Carrier key has 5.3.1.2 MIL-STD-171 phosphate finish inside and out with 1.2.2.2 MIL-STD-171 hard chrome bore.
• Carrier key is attached with Grade 8 hardware and properly staked per the Mil-Spec.

Bolt

• Bolts are CNC machined from Carpenter No. 158® steel.
• Bolts have 5.3.1.2 MIL-STD-171 phosphate finish inside and out.
• All bolts are shot peened per the current Mil-Spec.
• All bolts are Individually High Pressure Tested (HPT) and then Individually Magnetic Particle Inspected (MPI).
• Tool steel extractor, shot peened, 5.3.1.2 MIL-STD-171 phosphate finish, fitted with a Mil-Spec black extractor spring insert and Mil-Spec Viton o-ring.
• Mil-Spec firing pin with 1.2.2.2 MIL-STD-171 hard chrome finish.
• Mil-Spec cam pin with 5.3.1.2 MIL-STD-171 phosphate finish.
• Mil-Spec firing pin retaining pin with 5.3.1.2 MIL-STD-171 phosphate finish.