The Ultimate Backpack AR-15
In this video, Caleb from Brownells walks through the full build of what he calls the Ultimate Backpack Gun for 2025. Designed around the Law Tactical AR Internal Carrier (ARIC) and the new Law Wrap 1913 adapter, this compact AR setup is perfect for discreet transport and quick deployment. Follow along as Caleb assembles the full rifle step-by-step, from lower to upper, and explains each component choice along the way. Chapters 00:00 - Introduction and Concept 00:47 - Law Tactical ARIC and Wrap System Overview 02:06 - Lower Receiver Selection and Setup 03:20 - Trigger and Safety Install 05:01 - Greasing and Assembly Tips 08:05 - Ambidextrous Selector Setup 09:33 - Grip Installation and Detent Greasing 11:17 - Selector Lever Pin Installation 12:03 - Installing the Law Wrap Adapter 14:10 - Takedown Pin and Spring Fitment 16:52 - Proper Torque for Wrap Flange 17:58 - Set Screw Installation Warning 19:17 - Reinstalling the Rear Plate and Function Check 20:11 - Upper Receiver and Barrel Setup Begins 21:29 - Brownells Lightweight Barrel Specs
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