SN1856: New Stemple Takedown Gun (STG) U45/U9SF Package

Product Description

Actual Gun Pictured:

SN1856 is an unused gun in new condition with a couple minor porosity blems under the marking line (see pics):

Includes:

• Complete Stemple 76/45 (STG) U9SF Machine Gun with Low-Recoil Bolt System and Internally Threaded Trunion Pattern
• NiB Battleworn plating is added to the aluminum parts. This high performance finish looks smoky black in color and adds greater durability and ease of cleaning compared to an anodized finish
• 2 x Suomi 70rd Drums 
• 2 x Suomi 36rd Magazines
• Atlas Bipod 
•  Multi-Tool
• Hogue Grip
• Sights not included
• Law Tactical Folding Stock Setup with Magpul stock
• 10.35" barrel setup with HK 9mm Pattern 3-Lug adaper
• Spare 13" barrel included 
• hook pattern charging handle

2022 Update:  For 2022 we are introducing the new Internally Threaded Pattern (ITP) assemblies of the Stemple 76/45 receivers to offer a more streamlined and versatile system with enhanced compatibility among setups.  Per this previously approved method of attaching the trunion, separate trunions and bolt guides are no longer necessary for converting between the standard and heavy bolt systems. While these can still be used on the receiver, one trunion now does it all.  For example, the previous U9 conversion to the U9 slow fire setup required separate trunions/bolt guides, bolts, stocks, and buffers.  In the ITP setup only the stock and buffer assemblies are switched to add mass to the moving parts for lower cycle rates.  The bolt and trunion are unchanged.  The fire controls, stocks, and mag housings are also unchanged.  

The conversion from the U9SF to the U45 in the combination guns is also further simplified by having a much heavier 45 bolt so a second bolt extension is no longer necessary to reduce the cycle rate.

The STG1928 parts are also fully compatible with this setup.  Ref Parts: (Chart)

2023 Update: We've recently switched to NiB Battleworn™ plating (dark gray color) on the lower assembly, magazine housing, and barrel jacket. This high performance finish adds greater durability and ease of cleaning compared to the black anodized finish. 

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U9 (SF)  Data:

Select-Fire with Quick-Change Barrel

Ultra-smooth adjustable-weight bolt system with hydraulic buffering 

Magazine: Suomi KP31 25 rd, 36 rd, 50 rd magazines and 40 rd & 70 rd drums

Nickel Boron Plating Aluminum Parts and Bolt

Weight: 9.3 lbs

Cycle Rate: 550-800 adjustable 

Stainless Steel Barrel

Barrel Length: 10.35" threaded .578"-28 or 1/2"-28, or 3-lug setup to use common suppressor.  Other shroud and barrel setups are also available.

Transferable

In 2003, the original inventor, John Stemple collaborated with BRP Corp to make new and replacement parts for the Stemple 76/45 receivers he manufactured prior to the 1986 cutoff.  From this came a series of compatible drop-on parts for the unmodified/transferable Stemple 76/45 receivers known as Stemple Takedown Gun (STG) setups.  Since nothing is welded or hand fitted to these receivers, changing setups and replacing parts is fast and easy.  These are the most finely built and smooth running sub-machine guns on the transferable market.  We build them for performance and durability, stock plenty of high-quality spare parts, and provide excellent service.  There is only a limited number of these pre-1986 registered/transferable machine guns remaining, so get one while they last.

They are ‘new’

Well, the receivers are nearly 40 years old but the Stemple Takedown Gun (STG) setups are complete new parts packages installed on unused pre-1986 transferable Stemple 76/45 machine gun receivers.

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.

Customizable

The quick-change barrel system allows for a large variety of shroud and barrel options.  By using Picatinny rails (MIL-STD-1913) for sights and hand guards, shooters can add a variety of accessories and optics.   The configurations with the Adjustable Bolt System use common AR pattern stocks and grips with hundreds of options currently available. 

Easy-to-Replace Parts

There’s nothing on these guns that can’t 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.

Available Service

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.

Can't Get Too Hot

These are ideal for machine-gun shoots. The low-pressure pistol ammo cannot create enough heat in the barrel to cause a malfunction or damage the gun.  There's no gas system to clog, and the open-bolt system negates any cook-off risk.

Common Add-Ons (Discounted):

• Add 12.875" Heavy Barrel (not threaded): $160 ($130)
• Add MG08 Pattern Spade Grip Kit: $495 ($420)  (only works with the standard U9 Lower Housing, not the STG34)
• Add extra bolt 9mm: $375 ($325)
• Add extra bolt 45 acp: $450 ($400)
• Add extra barrel with 3-lug adapter: $210 ($180)
• Add extra barrel 45 barrel threaded 5/8”-24: $160  ($130)
• Add extra 9mm barrel threaded .578”-28: $160 ($130)
• Add extra mainspring  $12 ($9.5)
• Add RF-0 fast fire buffer assembly (for use with 9mm only) with ACE folding stock system: $360 ($315) 
• Add short Steel Shroud (blued or parkerized finishes available)  shroud setup with 8.6" barrel threaded 1/2"-28 or unthreaded 8.3” barrel($325)