Sharps Bros The Jack Gen2 Billet Lower | 7075-T6

The Sharps Bros The Jack Gen2 is a billet, stripped AR-15 lower receiver machined from 7075-T6 aluminum and finished with a hardcoat anodize. The Gen2 design adds a threaded bolt catch pin, reduced weight and refined styling while maintaining compatibility with mil‑spec internal parts and aftermarket mil‑spec upper receivers. This stripped lower is marked Multi‑Cal and features an oversized integral trigger guard and a beveled magazine flare. A lower parts kit, buffer assembly and stock are required to complete a functional firearm.

Product Specifications

• This item is a stripped lower receiver intended for use on AR-15 platforms.
• The receiver is machined from 7075-T6 aluminum.
• The finish is Black Hardcoat Anodized.
• Gen2 features include a threaded bolt catch pin and reduced weight.
• The lower features an oversized integral trigger guard.
• It includes a beveled magazine flare to assist with magazine seating.
• The receiver is marked Multi-Cal.
• Compatible with mil‑spec AR-15 internal parts and aftermarket mil‑spec upper receivers.
• Accepts GI standard issue magazines and PMags.
• The receiver weighs 11.1 oz.
• Overall dimensions are 2.30 x 4.45 x 8.80 inches.
• Designed for the AR-15 model on an AR platform.
• State restriction: NO SALE TO ILLINOIS PICA.
• UPC: 850869008033.

The Jack Gen2 combines billet construction and practical design features for builders who want a distinctive, lightweight stripped lower that accepts standard mil‑spec parts. Its machining, hardcoat finish and compatibility with common magazines and internal parts make it suitable for precision-oriented builds and general-purpose AR-15 platform projects.