Lower Spikes, Barrel Red X Arms, Receiver?
I have an issue with every other round jamming or not feeding properly. I bought the gun used so Im not sure of the upper parts. Looks like there are no M4 ramps in the receiver. The tip of the bullet stops at the top edge of the barrel extension. You can see a mark where it leaves green paint from the bullet. Should I buy a different receiver with M4 ramps machined already or just match them myself with a rotory bit. I run a lathe and mill so it wouldnt be a problem. Just want input on whats the right way. Thanks