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AR-15 .22LR Conversion Guide: Drop-In Kit vs. Dedicated .22 Upper Quick answer: An AR-15 .22LR conversion lets you shoot cheap .22 Long Rifle ammo from the rifle you already own. You have two routes … read more

AR-15 Bolt Carrier Group Guide: Coatings, Mil-Spec Features and How to Choose Quick answer: For most AR-15 builds, the best bolt carrier group (BCG) is a full-auto (M16) profile carrier with a st … read more

AR-15 Build Kit Guide: Every Part You Need and the Best Kit for Your First Build Quick answer: An AR-15 build kit groups the parts you need to assemble a rifle or pistol at home. The easiest rout … read more

Lower Parts Kit vs. Lower Build Kit: What You Need to Build an AR-15 Lower Quick answer: A lower parts kit (LPK) contains the small parts that go inside and on the lower receiver: trigger group, … read more