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New and improved design! Semiautomatic build kit for the STEN Mk3. This closed bolt
system works extremely well and eliminates the problems of kits offered by other companies.
You will need this kit, one of our tubes (MK3SAT), and an original Mk3
parts kit in order to build a legal semi automatic firearm. This kit includes the following
high quality American made parts: a semi-auto bolt, cocking handle, standard AR-15 firing pin,
roll pin, firing pin spring, bolt stop, guide rods, rod retainer, 2 sets of springs, rear
barrel bushing, rivets, and assembly instructions. Two small parts need welding. Design is based
on our ATF approved Mk3 model. Other US made parts may be needed to be compliant with
GCA 18 U.S.C. 922r.
$20.00
$85.00
$185.00
$155.00
$105.00
$35.00
$8.00
$4.00
