Love the thing, now when I'm walking around the woods, the house, or in the truck, I'm not thinking "Are these 15 rnds of 9mm (or 8 rnds of 45) gonna cut it?" Now I actually feel like I have a gun lol. I will admit I read up on it and realized its potential as a hobby gun, reloading and the myriad of caliber possibilities you have with it. I recently ordered some ammo from georgia arms and doubletap... The one thing I am worried about is shooting hardcast bullets thru the factory glock barrel (this is based solely on reading threads and posts saying you shouldn't). I've then also read that switching the barrel on the 20 can make for tighter tolerances which may affect the famous glock reliability. So I come to you experts who have experience with this for advice. The exact ammo I got is Doubletap 200gr wfngc hardcast. Not even sure why I ordered this particular round but wanted to try a variety and this one came to me. On another note I was wondering what ppl are doing to mod their 20's... I got the SF model but was thinking of getting a grip reduction done (who does a good job?) and def. gonna add some different sites (been lookin at XS sights but what do you guys use?) I wanna thank anyone in advance who reads this novel and actually replies to it, I will probably be annoying a lot of you guys on here at the 10 ring lol. -Skippz Wanna kill these ads? We can help!