AR Sponsor
Posted: 5/17/2015 2:32:33 AM EDT
| Rifle has a 16" barrel, muzzle brake and adjustable gas block. I replaced the buffer spring with one from Damage Industries and noticed that the recoil became harder compared to when I had the original buffer spring (gas setting was not changed). Is this normal or will it soften? I'm thinking of trying out the springs from Sprinco, any thoughts? Tnx |
|
Quoted:
Rifle has a 16" barrel, muzzle brake and adjustable gas block. I replaced the buffer spring with one from Damage Industries and noticed that the recoil became harder compared to when I had the original buffer spring (gas setting was not changed). Is this normal or will it soften? I'm thinking of trying out the springs from Sprinco, any thoughts? Tnx David Tubb sells a premium flatwire spring that I have had really good luck with, and looking through Brownells AR15 candy store, others also have a good, high quality spring. Tubb's spring comes in one length, suitable for carbine or rifle. |
|
First off, when it comes to the recoil spring, and the buffer, the upper receiver has nothing to do with it.
The spring and buffer all depend on the length of the receiver extension inner void. A telescoping butt stock has a shorter receiver extension, and it requires the shorter carbine type buffer and 10.5" recoils spring. A fixed stock (a1 or a2), has a longer receiver extension, and requires the longer buffer and 11.75" recoil spring. Hence it all comes down to the depth void of the receiver extension in play on the lower receiver, and that dictates the length of the buffer and spring required. Bluntly, the length of the buffer is foremost a limiter to keep the back of the carrier key from crashing against the back of the lower receiver where the receiver extension threads in. Once you have the lengths correctly, then you can get into different buffer masses, spring tensions. So if you use a carbine buffer and carbine length buffer in a fixed stock with the longer receiver extension, your going to crack the lower receiver. If you use a longer standard buffer, or longer standard 11.75" spring in a telescoping stock lower, then the bolt can not travel back far enough to strip a round correctly out of the mag in the case of the buffer, and in the case of the spring, it coils binds out before the bolt can travel all the needed way back instead (causes short stroking problems). So with all this in mind, if you installed a 11.75" spring in a carbine receiver extension, then the harder recoil could just be the spring coil binding up, and why the rifle now has a harder felt recoil instead. Of if you really screwed up and installed the shorter spring, and/or shorter buffer in a longer fixed stock receiver extension, what you are feeling in increased felt recoil, the back of the carrier trying to crack the lower receiver instead. |
AR Sponsor