Psycoballistics Lightning Deluxe
ANS 90* Frame
ANS Beaver Tail
Evil Pipe Barrel
FBM Back Block
CCM Pump Arm
Macro and a Shocktech drop
68/4500 PMI tank
Holds the hopper securly, no more twisting hopper
See the review
Well, the neck is a very low profile and holds the hopper very very securely, but I purchased the feedneck and just had the feed sent to me, and they sent the wrong feed, but no problem, I have the tools to press it in, and ream the extra matrial off, and drill the detent hole. My only gripe is with FBM themselves, the tollerences on the other parts I ordered and own from them are very low, though I have fixed them with my tools.
So my problem was with the company, not the part, so I have to rank the part as an 8 because the part is a little floppy, and loose, but it works very well. It should serve me well.
I recomend this product, though you have to send the gun to FBM, unless you have the know how, and the tools to make the part fit, and press it in.