The Knights Armament SR-25 Ambi V2 Complete Lower Receiver Assembly gives your AR-10 / SR-25 pattern build a factory-grade foundation. Built on a forged 7075-T6 aluminum lower with a black MIL-SPEC Type III hard coat anodized finish, this serialized assembly arrives fully outfitted with ambidextrous controls and a crisp two-stage 4.5 lb match trigger for consistent, repeatable shot placement.

This complete lower includes the buffer tube, action spring, buffer, and pistol grip already installed, so you only need to pin on an upper receiver to complete your rifle. The integrated QD sling mount and mirrored safety, magazine release, and bolt release make it equally comfortable for right- or left-handed shooters. Ideal for precision range work, training, or competition-focused builds, it reflects Knights Armament’s reputation for meticulous machining and dependable performance.

• Manufacturer: Knights Armament
• Model: SR-25 Ambi V2 Complete Lower Receiver Assembly
• Product Type: Serialized Complete Lower Receiver
• Platform: AR-10 / SR-25 Pattern
• Trigger: Two-Stage 4.5 Lb Match Trigger
• Controls: Fully Ambidextrous Safety, Magazine Release, And Bolt Release
• Included Components: Buffer Tube, Action Spring, Buffer, And Pistol Grip
• Material: Forged 7075-T6 Aluminum
• Finish Color: Black Mil-Spec Type III Hard Coat Anodize