Stock rear sight and just ordered a custom Dawson .240h x .125w. My old eyes like less of a gap. Yellow f/o from Brazos.
CGW 10 recoil spring, CGW 11.5 HS, CGW reduced trs, CZC extended fp and 2075 Rami fps. I did not polish the internals, springs only! DA 5.14 and SA 2.0. Stock trigger. CZC thin blue grips, CGW floating trigger pin, CZC basepads. I have the CZC RRK kit but will wait until May on the install if needed. I got lucky. I have on order a set of LOK thin full checkered G10s. Depending on muzzle flip, might entertain an 8 or 9 recoil spring.
Running ammo/primers reliability tests. So far it has lit up everything (Fed, MagTech, Win, CCI) and I like the 135g Blue bullet from TNT with Win primers. First match with it this weekend in Dothan.