Aero Precision 5.56 Complete Bolt Carrier Group, Nickel Boron

Description: Aero Precision 5.56 Complete Bolt Carrier Group, Nickel Boron. This eye catching complete Aero Precision 5.56x45mm bolt carrier group is manufactured for the AR-15 rifle platform. Features of this assembly include a carrier machined from 860 tool steel and bolt produced from 9310 steel and a nickel boron coating inside and out of the bolt, carrier and gas key.

Built in the USA to Mil-Spec dimensions, this bolt carrier group is comprised of qualiity components. It features a C-158 steel bolt, 8620 steel bolt carrier, 4130 steel gas key, 4340 steel cam pin, E4140 steel extractor, and an AISI 8740 steel firing pin. This bolt assembly is ready to drop in to your AR-15 style rifle. This high quality component is great for your .223 Remington/5.56x45mm build, or for upgrading your factory components. 

Note: It is recommended that all Aero Precision parts be installed by a qualified gunsmith.

Features:

• Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Carrier has forward assist serrations & is M16 cut
• Shrouded firing pin
• Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
• Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked
• 5.56 Bolt is shot Peened and MPI
• Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
• Tool Steel Extractor
• High quality BCG

Manufacturer: Aero Precision

PRODUCT SPECIFICATIONS:

• Brand: Aero Precision
• Caliber:.223 Rem,5.56x45mm
• Finish / Color: Nickel
• Firearm Type: Pistol,Rifle
• Material: Steel
• Models Fit: AR-15