Feeding Rock River Arms' .458 SOCOM

MUP

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How the hell would that sob fit in an ar mag well 😁
Straight stack, 7 in a standard 20 round mag and 9 in a 30 rounder. 😉

As noted above, the cartridge was designed to be 100 percent compatible with the M4 platform. This included the buffer, buffer spring, GI magazines, many aftermarket .223/5.56 magazines, and magazine well. In .223/5.56 caliber, cartridges stack in a staggered (double stack) fashion. However, with the much larger .458 SOCOM, rounds "single stack" without any modification to the standard GI magazine feed lips or follower, making it the most versatile and cost effective big bore offering in an AR-15 platform. A standard 20-round 5.56mm NATO magazine can hold seven .458 SOCOM rounds and a standard 30-round 5.56mm NATO magazine can hold nine .458 SOCOM rounds.
 

PossumSlayer

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Down Town Skinem
Straight stack, 7 in a standard 20 round mag and 9 in a 30 rounder. 😉

As noted above, the cartridge was designed to be 100 percent compatible with the M4 platform. This included the buffer, buffer spring, GI magazines, many aftermarket .223/5.56 magazines, and magazine well. In .223/5.56 caliber, cartridges stack in a staggered (double stack) fashion. However, with the much larger .458 SOCOM, rounds "single stack" without any modification to the standard GI magazine feed lips or follower, making it the most versatile and cost effective big bore offering in an AR-15 platform. A standard 20-round 5.56mm NATO magazine can hold seven .458 SOCOM rounds and a standard 30-round 5.56mm NATO magazine can hold nine .458 SOCOM rounds.
I bet that is fun shooting pigs with.. big thump
 

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