AGG

6122 is an IF date code (1985). Tony

Who did the conversion? Registered receiver? Tony

Prayers to his family and friends. Tony

The barrel should be fully threaded. I believe that it is just a plastic or metal cap that was sealed ("loctited") to the threads--- may need vice grips to break the seal. Also, I think that the threads are right hand--- you will probably need to turn counter-clockwise to remove the cap. Tony

And no deflectors under around TA004000. Tony

I have seen green label R6450's with the sear block (attachment point on the right receiver) beginning around TA0080XX (later attachment points on both sides of the receiver). Tony

Does this have the deflector and sear block? Tony

A pioneer--- prayers to his family and friends. Tony

3,268 pages. Tony

Factory or MCP/LIQ? Round capacity? 1-rivit or 3-rivit? Tony

If newer production, be aware that "MU96XX- MU97XX" had a piston defect (chewing up the blue O-ring when attached and removed) and will need to be replaced by KAC. Tony

Thank you--- very nice sample. Tony

Can you post some pictures, especially of the relevant rifle markings, as well as the manual and box? Tony

3,213 pages--- updated Table of Contents--- new purchasing options. Tony

Excellent. Is the receiver aluminum, steel, or titanium? PM to you--- thanks. Tony