Just an idea brother,but you could send it to Bill Springfield to improve it or have it nickel boron coated.I have a 2 stage on both 5.56/.308 20" HBAR that were tweeked and stoned to make smoother and like them both they were in lower and had them done at the gun show by my AR guy there.Just figured while trigger is out might be an option. <dontknow>.Just my 2 mags.