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STG U9 & U9-SF
Stemple Takedown Gun (STG) U9
Transferable
U9 - Standard Bolt System
The STG Universal 9 (U9) features a simple, smooth-running blow-back system similar to the Suomi M31 which yields a cyclic rate of 750 rounds per minute. These are the most smooth, controllable, and versatile subguns on the transferable market. It's so smooth due to the weight, layout, and action; you can actually watch your target being hit through a 4x scope while shooting long bursts. This setup utilizes rigid AK/ACE side-folding stocks or AR pattern stocks, AR pattern grips, and a variety of shroud and barrel options for both heavy and light setups.
U9 Slow Fire (SF) - Heavy Bolt System
The Slow Fire (SF) utilizes an ultra-smooth adjustable-weight bolt system with hydraulic buffering to dissipate the energy in the recoiling mass during the cycle process. This is an ideal system for shooters looking to maximize suppressor performance by increasing dwell time in the chamber thereby reducing port noise. The cyclic rates with this system are adjustable between 525 to 900 round per minute. Shooters can customize their preferred rates simply by adjusting the bolt parts. At the lowest rate, this gun has a sustained fire of approximately 9 seconds with a 70-rd drum. The Heavy Bolt System is also used for the 45ACP and 7.62x25 setups. These setups utilize AR pattern stocks, AR pattern grips, and multiple Picatinny mount options for maximum versatility
