Everything you need, ready to pin onto your MP5K, SP5K or SP89.
Gear Head Works MP5K-SP5K folding arm bar with tailhook mod1 brace installed.
Made in the USA and includes the buffer already installed. It is ready to pin onto the back of your gun.
Note: This is only for the k model receivers with the 2 pins in back. Will not fit the full size or reverse stretch guns.
