.510 Beck AR Drum Mag
By Ray I.
What in the heck is a .510 Beck you ask? The .510 Beck is a big straight walled cartridge that was developed by Beck Defense, it is compatible with .308 platform AR-10 lowers but it needs a different bolt, barrel and magazines to function. They’ll be available in 327 grains all the way up to 680 […]
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Source:: The Firearm Blog
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