Underwood Ammo AR-15 Parts & Accessories

Underwood is an Illinois ammo company that loads full power hunting and defense rounds. They are known for solid copper Xtreme Penetrator and Xtreme Defender loads and a big 10mm lineup.

Manufacturing origin: Made in USA.

Underwood Ammo has 393 products available on GunPartPicker, ranging from $0.97 to $153.99.

Underwood Ammo Product Categories

• Ammunition: 86 products
• 9mm: 48 products
• 10mm Auto: 34 products
• .40 S&W: 26 products
• .45 Colt: 25 products
• .45-70 Govt: 19 products
• .45 ACP: 18 products
• .357 SIG: 17 products
• .380 ACP: 16 products
• .458 SOCOM: 15 products
• .38 Special: 13 products
• .44 Magnum: 12 products
• .357 Magnum: 9 products
• .44 Special: 6 products
• .450 Bushmaster: 6 products
• .223 Rem: 5 products
• .350 Legend: 5 products
• .300 Blackout: 5 products
• .308 Win: 4 products
• 6.5 Creedmoor: 4 products
• .338 Lapua: 3 products
• .32 ACP: 2 products
• .38 Super: 2 products
• 6.5 Grendel: 2 products
• .22-250 Rem: 2 products
• .30-06 Springfield: 2 products
• .270 Win: 1 product
• .243 Win: 1 product
• 7.62x39mm: 1 product
• .30-30 Win: 1 product
• 7mm Rem Mag: 1 product
• .300 Win Mag: 1 product
• .224 Valkyrie: 1 product

Stock status: 144 in stock, 249 out of stock.