MSR Arms is your best source for high-quality AR rifle, carbine and pistol barrels. With our wide selection of precision barrels, you’re sure to find a barrel that is right for you.
Ready to build your own? MSR Arms has a line-up of 80% lower receivers, 80% jigs and tool kits to help make your build a success.
MSR Arms is your go-to source for restricted state compliance parts and accessories. Let us help you keep your rifle legally in your hands.
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