This Knights Armament Company Sand Cutter bolt carrier group (BCG) integrates the 3.2 bolt assembly into a chrome-finished Sand Cutter carrier body, providing a complete replacement or upgrade component for SR-15 and SR-16 pattern rifles chambered in 5.56 NATO. The Sand Cutter carrier with its full chrome finish presents a hard, low-friction surface that assists in smooth cycling and corrosion resistance, while the 3.2 bolt’s dual ejector design promotes positive extraction and consistent ejection across a variety of conditions.

Manufactured to Knights Armament’s specifications, this complete BCG is intended for use in compatible AR-pattern uppers accepting SR-15/SR-16 bolt carrier group geometry. The polished internal chrome surfaces and robust external finish combine to improve ease of maintenance and durability under heavy use. This assembly is suitable for duty rifles, precision builds, or any application where enhanced extraction and reliable cycling are priorities. No original box included.

Specifications

• Manufacturer: Knights Armament Company

• Model: Sand Cutter BCG with 3.2 Bolt Assembly

• Caliber: 5.56 NATO

• Bolt: KAC 3.2 bolt with dual ejectors

• Carrier: KAC Sand Cutter Bolt Carrier

• Finish: Full chrome

• Material: Steel

• Compatibility: Knight's Armament SR-15 and SR-16 pattern uppers