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Discussion in 'AR-15 Discussion' started by WillWorkForAmmo, May 14, 2013.
Carbine systems, piston systems, mid length, : what's the difference?
carbine gas system works best with 14.5 inch barrels barrely adequate for 16inch
midlength ideal for 16 inch barrels
rifle length ideal for 20+inch barrels. not suitable for 16 inch barrels.
you also have to deal with appropriate gas port size and gastube diameter and gas block port size for each style. more to it than just length
That's explained well in the AR15 Primer...
A really good read. Actually what brought me here.
So will Mid Length gas system do well on 14.5"?
Yes, but not always.
Some people have had cycling issues with this recipe, but my 14.5 ML BCM has been perfect so far. It's quickly becoming my favorite carbine.
Wow thanks the ar15 primer amazing thanks answered all my current questions ill be back though once I get some more.
Yes, excellent read, clear and very useful.
Hmmm, sounds like Tikki should get a gratis membership upgrade!
Can a piston system be put in any length ie piston with rifle or carbine etc
Piston systems are proprietary, meaning every system is different because it is not standardized. Different types of systems, like long stroke, short stroke, different gas blocks, gas port dimensions. Everyone's got their own take on it. H&K, LMT, POF, LWRC, STG, AA, etc etc etc.
I'm afraid your question is too general. You will have to refer to the manufacturer.
I love my middy 14.7" PSA . It even cycles perfectly with the .22lr kit in it which is great for practicing with . This is my go to gun next to the PSA 16" red headed step child that has more than proven its self with well over 8000 rds now without any issues other than the cleaning and new gas rings it got over the winter that I thought it needed . I hate to deprive a gun but this one really does get the most attention out of all of them , She gets more range time and more hands on her than anything else I own
Why would you want to???
Just something to think about.
Direct impingement is actual a piston system with the piston being on top of the bolt carrier and super short.
Jon is right the piston system is just puking gas under the hand guard instead of in the upper like a DI system
Sounded better keeping the inside important part away from the fouling and heat.I heard they can pose the problem of shaving some metal slowly on the inside
AR is designed to be a D.I. System, and works well in that format. It is NOT designed as a long/short stroke piston system.
Would you convert your AK to a D.I. gas system?
If you want a piston gun buy a AK , if u want a AR go DI. Pretty simple choice really , they are both proven , parts galore , and both very reliable in their original form. Im not saying a piston system in a AR is bad but if something breaks on a piston AR, chances are your not going to stop into just any shop and get parts and who wants to wait to have fun
Kryptar and purehavoc points just convinced me. I was always tempted to get that PWS Diablo upper for quiet long. But now that temptation just been reduced to be 30%.
We should start a "How can I convert my AK to a DI gas set up?" On the AK forum?
No shavings to speak of. There is plenty of room for fouling to go and get out of the way. DI does blow some stuff into the upper, but it does not cause any problems. I have never seen an AR malf from fouling. I have seen AR's malf from lack of lube. The gasses will contribute to the lube drying out. Lube it up and go