The Jack – Gen2 features includes a threaded bolt catch pin, reduced weight and improved styling. It is machined top to bottom from 7075-T6 aluminum with an oversized and integral trigger guard, beveled magazine flare, and a Multi caliber mark. The Jack is fully compatible with all mil-spec internal parts and other aftermarket mil-spec upper receivers, and GI standard issue magazines as well as PMags.

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• Category : Lowers
• Type : Lower Receiver
• Gun Model : AR-15
• Gun Type : AR Platform
• Caliber : Multi-Caliber
• Material : 7075 T6 Aluminum
• Finish : Black Hardcoat Anodized