Also check the buffer retainer detent, the little springloaded dohicky that keeps the buffer in the lower. If you have a piston upper or a gas upper prone to carrier tilt, that thing can take significant impact. If you start to see signs of impact or wear, you might want to order HKs improved part they made for the 416.
September 13th, 2018 at 8:23 pm
Also check the buffer retainer detent, the little springloaded dohicky that keeps the buffer in the lower. If you have a piston upper or a gas upper prone to carrier tilt, that thing can take significant impact. If you start to see signs of impact or wear, you might want to order HKs improved part they made for the 416.