The Sharps Bros The Jack Gen2 AR-15 Stripped Lower Receiver, Black Anodized (brand part no. SBLR03) is a stripped AR-15 lower receiver for builders who want a distinctive receiver under their own choice of parts. The Gen2 design adds a threaded bolt catch pin, reduced weight and improved styling over the original Jack. It suits a builder who wants an aggressive-looking lower with a standard parts fit.

Key Specifications

• The platform is the AR-15 pattern, so it accepts standard AR-15 uppers, buffer systems and furniture.
• The weight is 10.7 ounces, which is solid without being heavy.
• The receiver is machined top to bottom from 7075-T6 aluminum, a high-strength, corrosion-resistant alloy.
• The finish is a hard coat anodize per MIL-A-8625, the same anodizing standard used for many military and aerospace parts.
• The lower is marked multi-caliber, which suits builds across the AR-15 family of calibers.
• It is fully compatible with mil-spec internal parts, so a standard lower parts kit fits.
• It is fully compatible with aftermarket mil-spec upper receivers, which keeps upper choices open.
• A threaded bolt catch pin is part of the design, which helps keep the pin in place.
• An oversized, integral trigger guard gives a gloved finger more room.
• A beveled magazine flare helps guide magazines in for faster reloads.

Frequently Asked Questions

What changed in the Gen2 Jack? Sharps Bros lists a threaded bolt catch pin, reduced weight and improved styling for the Gen2 version.

Does it work with PMags? Yes. Sharps Bros lists full compatibility with PMags, Hex mags and other standard-capacity magazines.

Is the finish black? Yes. It has a black hard coat anodize finish per MIL-A-8625 over 7075-T6 aluminum.

Buy the Sharps Bros The Jack Gen2 AR-15 Stripped Lower Receiver, Black Anodized

Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL. The Jack Gen2 brings a black anodized finish and a threaded bolt catch pin to the AR-15 platform. Browse more AR-15 lower receivers to finish the build.