Quote:
Originally Posted by .45cultist
The R6920 Government Carbine(semiauto 16.1" barreled variant of the M4), and other "M4geries" are vary popular. The barrel has a slight range increase and can be retrofitted to an M4A1 without spacers. With a surplus shop nearby, one could equip them to almost standard.
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Didn't know this. Thank you very much. However I'm wondering about how long ammo would last, any ideas?