XN Drive Block -
Out of Stock
Quantity in Basket:
MKA-1919-XN drive block
We have began seeing some drive block breakage in high round count guns, usually 2-3000 rounds, a few earlier.
If you are a competition shooter or other high round count shooting, you need to check your drive block for cracks.
A broken block won't normally damage anything else, but will turn your gun into a single shot
Our block is made of billet high tensile steel, it has about twice the material in the break prone area as the factory block.
REQUIRES very slight, simple and easy carrier modification to fit correctly.