Primary Arms is your single source for all things relating to the AR-15 and M4. We pride ourselves on having a wide variety of AR-15 parts, firearms, tactical accessories and gear. We carry hundreds of the top leading brands such as Daniel Defense®, CMC, Spikes, Magpul, BCM and many more. Browse through our AR-15 Parts Store for triggers, upper receivers, bolt carriers, gas blocks, lower parts, kits, pistols, sights, grips, rails, handguards, and much more.
