||Excellent piston. A great piston to have in the back room for upgrade service.
The guide rails are very slick, piston slides very well in gearbox before lubrication, and even better afterwards. Teeth are strong, 10,000 rounds on 450fps rig with no wear. Also very flashy, looks very cool.
Good fit in shell
Impressive crimson color
advice to evike: Get a matrix line of these in a bunch of different colors. Make $$
Rating: [5 of 5 Stars!]