i have a slg, i love it, and i got a pulse lol, if you want a pulse or hopper that has a feedneck like that you will need a feedneck clamp, i bought a pulse and didnt no, and then i bought a new barrel for it aswell, and ki love my set up, but the asa comes wobly after a while so you will need to tighten it up after everytime you use it or buy a new one, and aswell im sorta getting bored of the trigger, so i might get a UL trigger, i decided on wednesday i anted one, due to couple of my mates have pmr's with UL frame, and i well like trigger, so thats the only you could think about in the future, but some people like the trigger