Which auto system is best? Inertia or gas.
.quartering said:pagani zonda. sorry. i thought this was another off forum discussion. gas. more stuff to keep clean but much more shooter friendly. if your really into speed, inertia is quicker between shots
The 390 and AL391 are both good designs. They are not the same as parts from the gas are not the same. I don't know of anyone making a copy of either design. There have been a few with the older 301-304 designs though.The 390 (391's) have the best gas system ever stuffed in a firearm...period. Copied by many but rarely duplicated.