Maxim AR-15 Parts & Accessories

Maxim Defense is an American manufacturer of AR-platform pistols, rifles, and components, based in San Diego, California. The brand is best known for its compact AR pistols — including the MD9, MDX 505, and PDX — that combine short overall length with enhanced buffer systems tailored to short-barreled operation. Maxim Defense also produces the CQB (Close Quarters Battle) stock and braces, pistol-caliber carbines in 9mm, and suppressed-host configurations. The brand''s compact platforms are popular with home-defense users, vehicle-carry applications, and PDW-style build enthusiasts. Maxim Defense products serve civilian, law-enforcement, and professional users seeking compact AR solutions.

Maxim has 7 products available on GunPartPicker, ranging from $0.00 to $1449.99.

Maxim Product Categories

• 5.56 NATO: 3 products
• Complete Rifle: 2 products
• 7.62x39mm: 1 product
• .300 Blackout: 1 product

Stock status: 2 in stock, 5 out of stock.