you'll still be fine with your current spring and buffer. if anything, you can try an H1 just to try how it feels shooting it like gotm4 says, but bottom line is your rifle will function correctly with what you have already.
Printable View
you'll still be fine with your current spring and buffer. if anything, you can try an H1 just to try how it feels shooting it like gotm4 says, but bottom line is your rifle will function correctly with what you have already.
In my experience with a 20" barrel with rifle length gas system on a collapsible stock carbine lower is the CAR buffer works best with most range fodder.223 Rem. and especially Wolf.The H and H2 works perfectly with 5.56 NATO pressure ammo.
For all around use I'd stay with the standard CAR buffer unless you plan to use 5.56 NATO as your main ammo source.
I'd also stay with the standard carbine spring.
Otherwise make changes and test as the others have recommeded.If you get too heavy in the buffer the rifle will want to short stroke with weak ammo....at least in my experience.
As for the BCM middy,I run a H buffer with standard carbine spring without issue.
if you have a carbine b uffer tube, it doesnt matter what buffer and buffer spring you use, as long as you aren't trying to put a carbine buffer and spring in a rifle or vise versa!
On my BCM Mid upper I tried a 9mm buffer & Stag standard carbine spring & the gun would feed fine but would occasionaly fail to lock back when empty. About 30% of the time it would auto-forward the bolt when inserting the mag if the bolt was locked back. Carbine buffer fixed that but I don't have an H-anything to try at this point. I think an H2 would work with mine but, again, would be ammo specific. I was running Centurion "M193" which I think I read somewhere was actually 223 pressure.
Im running an H buffer with my BCM middy upper and it runs like a champ with various ammo.
The bro inlaws complete BCM middy carbine from G&R Tactical came with an H buffer installed,and it also runs like a champ with various ammo.
So I'd say other than a CAR buffer the H buffer is also a safe bet with a mix of ammo.That said I have not seen the need to try an H2 buffer with the BCM's as of yet.They run super smooth.
YammyMonkey, Your standards 223, 22 calibers, Are actually a 224 caliber. If you are not believing me please feel free to go to a gunsmith and have him bust out a micrometer to measure the round. The bullet must be measured at the largest point. Why it is called 22, 223 I don't know. But when you actually measure it, the caliber is 224.
This is why you can get your standard AR15 PLATFORM AND SHOOT A 22 CAL THROUGH IT WITH OUT DAMAGING IT AS LONG AS YOU ARE USING THE PROPER CONVERSION KIT FOR IT. SORRY ABOUT THE CAPS. MY BIG FINGERS HIT THE CAPS KEY. UGH
All due respect man, but you should read around more on this site. Just because a buffer/spring combo will fit into your receiver extension does not mean your gun is guaranteed to run it. There is a very wide range of buffer weights that will fit into a carbine receiver extension.
As for your comments about calibers, Yammy is talking about different load pressures and different buffer weights. Projectile diameters are completely inconsequential to what he is saying. Depending on whether a person is shooting 5.56 or .223 loads, they will be able to optimize their system with different buffer weights.