If it's a fatigue question, then the complexity increases substantially - but since the basic question hasn't been answered, that one would have to wait.

If the anecdotal weakness claims have some basis, there's no way a pinned stock could survive even one rifle grenade shot. No one could even come up with a reliable secondary source mentioning a formal test.īy my calcs, recoil from the rifle grenade was about 5.5x as great as firing a rifle round. I've asked the same question at least twice - no takers. since the CMP has inspected many 03A3's over the years, I'd love to know if they have found a higher occurrence of broken pinned stocks Nobody directed that all pinned stocks be replaced before being sent to the field.Ĥ.

The fact that so many pinned stocks are still on rifles makes me think the pins had reasonable reliability for normal shooting. Nearly every broken stock I have seen discussed broke behind the tang.ģ. I do not recall a single example on this forum or others, where someone reported cracking their pinned stock across the pins. It says a lot to me that a decision was made to reverse course at a time when it was NOT convenient to do so. It has been stated that it was a result of grenade launching which seems logical (heavy mass being moved and the butt frequently placed against the immovable ground), but I haven't seen direct documentation to this fact. clearly something was amiss since a decision came to return to bolted stocks.

1903a3 stock crack