XxmachinexX

Im not sure what my problem is, but I opened up my nitefinder and drilled out the two air restrictors that protrude from the plunger case. Then, i used epoxy to atach my 1/2 inch copper barrell to the air restrictor at the very end of the plunger case setup(BAsically how most NF mods are). Should i Have not drilled out the very first one that the air passs through? anyway, im using micro nerf darts, and they go not farther, but in fact shorter a distance than my non-modified NF. This is my first odification and i'm kind of discouraged here. Should i use stefans instead? What size? (Inches),
Or, is the barrell material im using not right?