Circle Square Firearms sells firearms, ammunition, and related products. You must be at least 18 years of age to enter.
Some products and transactions may require additional verification and a higher minimum age (21 for handguns under federal law).
Rosco Manufacturing
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Or contact Circle Square Firearms directly at (866) 303-7222 or [email protected].
Prices and availability subject to change without notice. Product availability subject to applicable federal, state, and local laws.
Rosco Manufacturing, Sauce Pack, K9 Barrel, Upper Parts Kit, 223 Wylde, 13.95" Threaded Barrel, 1/2X28 Thread Pitch, Fits AR15, Mid-Length Gas System, Nitride Finish, Black, Includes Barrel, Bolt Carrier Group, Gas Tube, and Non-Adjustable Gas Block
