The San Tan Tactical Enhanced Bolt Carrier Group (brand part number STT-Enhanced BCG 5.56) is a nitride-finished BCG built for AR15-pattern rifles chambered in 5.56 NATO. San Tan Tactical applies the same precise manufacturing standard across its AR15 lineup that its AR10 parts are built to, aimed at shooters maintaining or upgrading an existing rifle. Finished in black nitride, this Enhanced BCG is built for durable, reliable cycling under the demands of a 5.56 gas system. It is a straightforward, drop-in upgrade for AR15 owners looking to standardize on San Tan Tactical parts.

Key Specifications

• 5.56 NATO chambering for AR15-pattern rifles.
• Black nitride finish for durability and corrosion resistance.
• Enhanced Bolt Carrier Group design from San Tan Tactical’s AR15 lineup.
• Precision-manufactured for reliable, consistent cycling.
• Built for AR15-pattern rifles rather than the larger AR10 platform.

Frequently Asked Questions

What platform does this bolt carrier group fit? AR15-pattern rifles chambered in 5.56 NATO.

What finish does it use? Black nitride, for durability and corrosion resistance.

Buy the San Tan Tactical Enhanced Bolt Carrier Group

Upgrade your AR15 with a nitride-finished, precision-manufactured bolt carrier group. Order it from our Lubbock, Texas gun shop as soon as it’s available to ship, and browse more AR bolt carrier groups.