Psa lower $399 Psa upper $300 Yhm muzzle break for suppressor $114 Radian raptor charging handle $100 Unity riser $105 Holosun hs510c $340 Magpul grip HB tactical pdw brace Franklin armory Binary trigger $386 4x pmags $72 Unknown flip up sights Bcm rail covers Aprox $1900+ Asking $1099