The first few STG-556 rifles were chambered in .223 Caliber. [4] In July 2012, MSAR resurfaced with a new STG-556 rifle variant known as the STG-E4. [7] MSAR closed down permanently …

2014年5月4日 · + High quality polymer construction + Very impressive fluted quick detach barrel + High 42 round magazine capacity + Ambidextrous design + Easy disassembly and assembly …

2015年3月23日 · Microtech’s small arms division, MSAR, has ceased operations. Microtech Small Arms Research, or MSAR, manufactured variants of the Steyr AUG for the US civilian market …

Serial #600-P010431, 5.56mm NATO, 16" and 20" fluted barrels with excellent, bright bores. This is a US-made version of the venerable Steyr AUG, and is fitted with the 1.5x optic. The OEM …

2008年10月10日 · I was under the impression from a MSAR employee that the E4 is a version of the STG-556. See the OP's first post. The Gen IV is out, so discussion about that and the E4 …

2023年4月21日 · Whether it be quality control issues, pre-mature parts wear, or too challenging of a clone – a lot of critics believe that Microtech should have started with an AR-15 to dip its …

2023年5月7日 · There was a link posted to a discussion about the generations of the MSAR rifles. All the E4 models are Gen 4. If you have a Gen 4 STG 556 you can swap an E4 stock or AUG …

2012年7月23日 · Microtech Small Arms Research went out of business a while ago, but their website is back online and the new owners are bringing an updated version of the STG rifle to …

2010年8月3日 · The E4 is easy to identify because of the lower, "non-raised" optic rail, additional rail locations, different stock texture, and an AR-15-esque "nub" on the grip. The differences …

2009年8月15日 · The STG-E4 was engineered to accept most commercial and military AR-15/M-16 magazines. MSAR has designed and manufactured XM30 E4 magazines with a radically …