Stemple Takedown Gun (STG) U9
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
Simple / Durable Design:
Our guns are very difficult to break and very easy to fix. They are simple blow-back guns and very smooth-running in long full-auto bursts. Some of our customers who own the 9mm guns liken the full-auto performance to a laser beam.
There's nothing on these guns that cant be easily replaced. We designed this system to protect the registered receiver from any wear during use. The only parts that can wear can be easily replaced without the need to ship the gun back-and-forth.
If you need service, we are here to support our products.
Shoot Cheap Ammo:
We typically just shoot steel-cased ammo. Our milled steel trunions easily deal with potential wear issues from any type of ammo.
Capacity and Control:
These guns use 70 round drums and are smooth cycling, heavy, accurate, and comfortable to hold. It's basically an assault rifle with a sub-caliber setup... a very controllable and accurate gun in full auto. 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. The 'laser beam' performance of this gun makes is one of the most enjoyable full auto guns you'll ever shoot.
(Includes foregrip, bipod, 2 drums, 1 magazine, multi-tool, spare buffer, barrel locknut/muzzle cap tool, choice of barrel and shroud setup, and choice of standard rate or heavy bolt system setup-add $100 for heavy bolt system) (sights not included)
Package Deal: (Includes all of the parts listed above as well as the Suppressor and Custom Hard Case)
Select-Fire with Quick-Change Barrel
Weight: 8 lbs with MN shroud/barrel, 9.7 lbs with Suomi M31 shroud/barrel
Magazine: Suomi KP31 25 rd, 36 rd, 50 rd magazines and 40 rd & 70 rd drums
(sights not included)
Standard Rate Setup with Folding Stock (750rpm)
U9 Slow Fire (SF) - Heavy Bolt System
STG U Series Case: Custom routed HD foam instert designed to fit the U9, U9 Slow Fire & U45
9mm Silencer: $425
MN Shroud for 10" & 16" barrels (threaded 1/2"-28)
M31 Slant Shroud for 12.75" barrel (unthreaded)
M31 Compensated Shroud 12.75" barrel (unthreaded)
The U9 Buffer uses the ACE-pattern screw mount (2 x 10-32 threaded holes) for attaching the stock assembly. The Skeleton Stock can be used with or without the folding stock mechanism. Also, there are numerous other adapter and stock sets that are also compatible with the U9 Buffer including an AR stock adapter These include the following:
Skeleton to AR Folding Stock Adapter for U9: http://star15.com/ar-stocks-folding-mechanism-fsm-ar.html
Skeleton AR Buffer Stock: http://star15.com/skeleton-stock-arfx.html
Folding Stock Mechanism: http://star15.com/push-button-folding-mechanism-fsm-pb.html
Push Button Adapter: http://star15.com/umpb-cup-screw-nut-no-swivel.html
Triangle Manticore Stock: http://www.robertrtg.com/store/pc/MANTICORE-TRIANGLE-STOCK-WITH-HINGE-ASSEMBLY-4p3603.htm
Assembly and Disassembly