JE Machine Tech PS-BCG3 Bolt Carrier Group Features The Je Machine Tech PS-BCG3 is manufactured from 9310 CrMoV steel a material chosen for its toughness and ability to withstand the repeated stress of cycling under pressure. Every unit is Magnetic Particle Inspected a process that detects subsurface flaws before the bolt carrier group ever reaches a rifle ensuring reliable performance round after round. The properly staked gas key keeps the carrier sealed against gas leakage which protects cycling consistency over the life of the part. This combination of material inspection and staking gives shooters a bolt carrier group built to handle demanding use. Finished in Black Nitride the PS-BCG3 gains added resistance to wear and corrosion compared to a bare steel finish helping it hold up through extended range sessions. It is built to run in rifles chambered in .223/5.56 NATO .300 Blackout or .350 Legend giving it broad compatibility across common AR builds. As the core operating component of the rifle the bolt carrier group directly affects reliability so upgrading to a properly inspected and staked unit is a meaningful step for shooters chasing consistent performance. The Je Machine Tech PS-BCG3 gives AR owners a dependable replacement or upgrade part for their build. JE Machine Tech PS-BCG3 Bolt Carrier Group Specifications Manufacturer: JE Machine Tech Caliber: .223/5.56 NATO/.300 Blackout/.350 Legend Material: 9310 CrMoV Steel Finish: Black Nitride Available At: GrabAGun