Get an aftermarket 3lb connector. Should be priced around $20.00 to $25.00.
There is also the .25 trigger job with info available on the GlockTalk website.
How about leave it alone and just shoot it?
For the price of the parts and/or work, you could buy a cheap rotary tool (Dremel knock-off) and some polish and do it yourself, and faster.
Best advice I got was from a certified Glock armourer at Police Ordnance. Leave it alone and just learn how to shoot it.



























