PSG1 they musta sold out. They had them under Rifle magazines in the Ruger area. I just checked and there not showing them. Last time I looked was when I posted it so it's been 3 weeks ago they go quick.
Thermold mags will not hold the bolt back after the last round! Yes they work great in AR's but not in any other weapon! Your best bet are PMI's, they function flawlessly and were also the contract supplier to Ruger. Another source for PMI's is www.claudehall.com he has 30 & 40 rounders.:ar15: