Howdy folks-
Found my buffer is not an H buffer, so two questions. 1) Is this buffer right, or is it a cheapo one or something?
http://www.bravocompanyusa.com/ProductDetails.asp?ProductCode=Buffer+Carbine+H&CartID=9
http://www.bravocompanyusa.com/Carbine-Action-Spring-p/spring%20carbine%20action.htm
I’d use both the H buffer and spring you posted links to. I have no idea of the quality of the Double Star spring.
Try the springs from www.tacticalsprings.com they are of very high quality designed for longevity. Pair whichever with your H buffer that you want to achieve your desired result. I tend to subscribe to the less moving mass, faster recoil impulse theory so I use a CAR buffer and blue spring with a lightened bolt carrier. I know that there are others here who like the heavier carriers, springs and buffers which is great also but it all depends on your application and the feel you like in the gun! Good luck! Btw, guys like Gotm4 are great resources…learn all you can from them!!
Sparky
what kind of buffer do you have then? what are your barrel and gas system length?
It’s an 18" upper with rifle length gas. Buffer is unmarked.
Rifle stock or carbine stock?
Carbine stock.
with those upper specs, i’d say that the buffer you have (unmarked means it’s a standard carbine buffer) and the spring you already have a fine. no need to upgrade. just shoot it. H and heavier buffers are mainly used for shorter barrels, shorter gas systems, and those who are running suppressors.
CAR through H2 will be fine, if you have access to all of those try each. Some feel better than others.
I’m terribly sorry, I had you all laboring under a false assumption. The spring and buffer are from an 18" upper (unfired), but I’ll be ordering a 16" middy from BCM to put on my current lower. So the spring/buffer would be used in conjunction with that.
I had my head too far up my butt when I posted this and neglected that important point!
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.