The problem is that the shell lift tab which engages the bolt carrier notch has an angle that is too gentle, and it will get pushed down too easily during cycling. When this tab slips down before the lift has successfully lifted up the shell, it will jam. What you need to do is file/shave the part to a more “straight” angle for it to activate the lift more reliably. Remove where the red line touches, it will lift reliably.
All you’re doing here is to prevent the slope from contacting the bolt carrier, and instead allow the top corner to interact DEEP into the bolt carrier notch, which provides a more positive “grab”. This will allow the lift to complete its cycle before this part eventually disengages.
WARNING : Only a very small amount of material removal is needed for the corner to engage, so go very slow, also polish and lubricate.
|
I want you to be pleased with your purchase, so do not hesitate one bit to ask questions before purchase! If we do decide to go forward with payment, I assume that you are satisfied with all info provided before payment. This is a polite as-is disclaimer. 
Reply With Quote
Originally Posted by wolf300H&H
