MP5K, Reverse Stretch- Trunion
US made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunion. This offering is the correct trunion for the MP5K and all MP5K PDW Variants. Including the reverse stretch offerings. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunions on the market. Machined to HK spec making the install painless and hassle free. The way a custom HK build it should be!