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View Full Version : Does it matter which spring you use for a 10.5in SBR/Pistol?


Chris42393
02-12-19, 21:11
Good evening everyone! I bought a regular carbine lower awhile back... Do you think a regular carbine spring will work for a 10.5in rifle? Or is there a special spring needed to run SBRs? If so, what do you recommend?

Thanks everyone!

Chris
dwd1985
02-12-19, 21:18
Regular spring should be fine, its the buffer you should be changing if anything. H2 or H buffer for a 10.5" will likely be better overall than a carbine buffer. If you want additional tuning you can always get an extra power spring.
MistWolf
02-12-19, 22:00
My experience is that H & H2 buffers are always better than CAR buffers.

Use a quality action spring. Cheapies will quickly sack.
Chris42393
02-13-19, 16:05
Regular spring should be fine, its the buffer you should be changing if anything. H2 or H buffer for a 10.5" will likely be better overall than a carbine buffer. If you want additional tuning you can always get an extra power spring.


Thanks for the reply! Ill get one just in case. Appreciate it!
Chris42393
02-13-19, 16:06
My experience is that H & H2 buffers are always better than CAR buffers.

Use a quality action spring. Cheapies will quickly sack.


Awesome, thanks for the help man!
markm
02-13-19, 17:38
Agreed on the Colt Carbine Spring, and an H2 buffer (at least). Most 10.5 barrels are over gassed... In fact, I can't think of any that aren't. An H2 is probably fine if there's no suppressor.
Chris42393
02-14-19, 08:44
Agreed on the Colt Carbine Spring, and an H2 buffer (at least). Most 10.5 barrels are over gassed... In fact, I can't think of any that aren't. An H2 is probably fine if there's no suppressor.

So just to confirm, you're talking about this spring here? ---> https://www.armsunlimited.com/Colt-M4-AR15-Carbine-Buffer-Action-Spring-p/sp62373.htm

Sorry, im new to the SBR "world" Wasnt sure which Buffer and spring to use... lol
bamashooter
02-14-19, 14:26
So just to confirm, you're talking about this spring here? ---> https://www.armsunlimited.com/Colt-M4-AR15-Carbine-Buffer-Action-Spring-p/sp62373.htm

Sorry, im new to the SBR "world" Wasnt sure which Buffer and spring to use... lol
Yep, that's the one. Good price and free shipping. Hard to beat that. I'd do 2 of them.
markm
02-14-19, 15:02
I used to get them at Brownells, but I haven't ordered any in a few years.
CoryCop25
02-14-19, 15:30
I have several SBRs. I will only use Colt, Vltor or Sprinco springs.
Chris42393
02-14-19, 18:25
Yep, that's the one. Good price and free shipping. Hard to beat that. I'd do 2 of them.

Awesome! Thanks for the reply! Will be buying them now!
Chris42393
02-14-19, 18:43
Just bought a Colt H2 buffer and Colt spring x2. Both were pretty cheap (around $45 for everything) and got free shipping! Thanks for the help everyone! :)