Faxon Firearms AR-15 Lightweight BCG Features The Faxon Firearms AR-15 Lightweight BCG pairs a 9310 tool steel bolt with an 8620 steel carrier both treated to full mil-spec standards with shot peening and magnetic particle inspection for maximum durability. The bolt uses 45 degree chamfered lugs for smoother lockup and improved longevity over repeated cycling. An S7 steel extractor with spring insert and o-ring is installed for reliable case extraction under hard use. The gas key is fully staked and secured with Grade 8 fasteners to keep the group running reliably. The hard chrome finish rated between 68 and 72 HRC is non-porous and corrosion resistant making cleaning simple after extended range sessions. A superfinished carrier body reduces friction and carbon buildup helping the action cycle smoothly shot after shot. Forward assist serrations ensure confident operation when needed and the trip sear is retained for compatibility with full-auto fire control groups and advanced triggers. This Faxon Firearms AR-15 Lightweight BCG is a proven upgrade for sale at GrabAGun for AR-15 owners seeking reduced weight without giving up reliability. Faxon Firearms AR-15 Lightweight BCG Specifications Manufacturer: Faxon Firearms Model: AR-15 Lightweight BCG Caliber: 5.56 Material: 9310 Tool Steel Bolt 8620 Carrier Finish: Nitride/Chrome Weight: 8.5 oz Compatible Hosts: Mil-Spec AR-15 Rifles Country of Origin: Made in the USA Available At: GrabAGun