Good looking/performing 10mm! Only recommendation being to use REAL 10mm ammo, as in examples from Buffalo Bore or like loadings. It should achieve 1300+ fps and 600-700 fpe with those loads. I run a Glock 29 w/3.78" barrel, somewhat modified, and shoot Speers 180 GDHP @1250 fps w/620+ fpe! My load version w/my upgrades provides consistent 3/4" groups @25 yards, putting to rest concerns about Glock accuracy. My G20, slightly modified 6" with a red dot will send plastic liter bottles into orbit @100+ yards. That 6" barrel gives me right at 800 FPE!