That's what I plan to use, too, Jerry. A late AKM turnnion, same as early 74. My point was that they used both in 1977. They just don't stop/start this type of thing on January 1st, hehe. Just because we might see that they used Part B in 1977 does not mean they didn't still also use PART A.jithaca said:Doug why not use the AKM stock trunnion?
I would also like to do a 77 AK74, just not sure what to do about a 45 degree gas block, how to make this work with the gas port on the AK74 barrel.
xcibes said:But in this case the timeline might have been tight. The 90 degree change was probably made quickly as compared to other more cosmetic changes, due to the discovery of the "bullet shear problem" with the HV round and the 45 degree vent. Unlike the Romanians (who deicded to go with a dual angle gas path) the Russians kept things straight and therefore the gas vent in the barrel and the gas port in the gas block always matched in angle. This meant a new gas block design.
Do you mean to say that Romanian barrels are drilled at 90 degrees but the gas block itself is 45 degrees so the gas goes UP through the barrel and then takes a sharp angle back once it reaches the gas block?
It sounds like you and I have a similar plan. I have a '77 AKM trunnion, RSB, and 45 deg gas block that I plan to put on a Bulgy barrel assy. If someone had said "No 45deg GB in '77" it would've made life much easier because I would simply use the Bulgy GB. Otherwise, I had planned to weld the gas-port and drill a new one for the 45deg GB. Good idea or no?Tantal said:That's what I plan to use, too, Jerry. A late AKM turnnion, same as early 74. My point was that they used both in 1977.
In fact, I plan to use a later type front sight base with the side indents, a 45 degree gas block, and an early rear trunnion on mine. I have seen this all on one rifle a couple of times in photos, some right here on this excellent web site. I plan to use a Romanian barrel, Jerry. Unless you found me an un-drilled Bulgy? hehe.