Knights Armament SR-15 AR-15 Lower Receiver - Ambidextrous - Stripped Lower - Cosmetic Blem

The Knight's Armament SR-15 Ambi Lower gives builders a forged, ambidextrous foundation with the trigger guard and takedown pins already in place. Built for shooters who want proprietary ambi controls without starting from a bare receiver, this lower streamlines the build process while keeping KAC's signature ergonomics.

Features:

• Forged 7075-T6 aluminum construction
• Type III hardcoat anodized finish
• Rollmarked "SR-15" and "5.56mm" designations
• Proprietary ambidextrous bolt catch/release
• Ambidextrous safety selector and magazine release
• Integrated trigger guard pre-installed
• Pivot and takedown pins included
• Compatible with standard mil-spec small parts and triggers

This lower ships partially assembled, with the ambidextrous controls, trigger guard, and takedown pins already installed, so builders can move straight to dropping in a parts kit and stock without machining or additional fitting. The receiver is rollmarked with "SR-15" and "5.56mm" designations and finished in a Type III hardcoat anodize for added wear resistance. The proprietary right-side bolt release is unique to the KAC design and works alongside standard mil-spec small parts and triggers, which fit the lower pocket without modification, giving builders flexibility in how they finish the rest of the build.

Knight's Armament Company has built a reputation supplying precision rifle systems to military and law enforcement units, and its SR-15 platform reflects that same focus on reliability and ergonomics. The company's ambidextrous control layout has become a recognizable feature among shooters looking for a more universally accessible manual of arms.