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Underwood 480 Ruger 300GR Xtreme Penetrator 20RD is designed for maximum effectiveness in big game hunting applications
Full Metal Jacket Bullet
AR15 Pistol Buffer Tube
Mounting hardware not included
CMMG BBL AND BCG KIT 16.1" 5.7X28MM Light & Laser Accessories Underwood 480 Ruger 300GR XtremeEnhance your AR 15 platform with the CMMG 16. 1" 5. 7x28mm Barrel and Bolt Carrier Group Kit. This precision engineered kit is designed to deliver exceptional performance and reliability for the high velocity 5. 7x28mm cartridge. The barrel is crafted from 4140CM steel with a Salt Bath Nitride (SBN) finish for superior durability and corrosion resistance. The included bolt carrier group is specifically designed to work with the 5. 7x28mm cartridge,
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