EXCEL ARMS X-5.7P
5.7x28mm cal., blowback action, SA, 4 (new 2023) or 8 1/2 (mfg. 2011-2022) in. threaded (new 2023) barrel, 10 (disc.), 20 (disc.), 25 (disc.), or 30 (new 2023) shot mag., CNC machined billet aluminum and stainless steel construction, no ...