Sardog72781 Posted March 4, 2017 Report Share Posted March 4, 2017 Good morning Everyone! I know there is a buffer question on here already. But it doesn't answer my question. What determines the best buffer weight and spring length? I am thinking about buying an 18" barrel with mid-lentgh gas port for my AR-10 build. Can I use a carbine buffer and spring with that? Thanks in advance! Quote Link to comment Share on other sites More sharing options...
shepp Posted March 4, 2017 Report Share Posted March 4, 2017 34 minutes ago, Sardog72781 said: Good morning Everyone! I know there is a buffer question on here already. But it doesn't answer my question. What determines the best buffer weight and spring length? I am thinking about buying an 18" barrel with mid-lentgh gas port for my AR-10 build. Can I use a carbine buffer and spring with that? Thanks in advance! Welcome to the forum feel free to tell us about yourself in the intro section Quote Link to comment Share on other sites More sharing options...
survivalshop Posted March 4, 2017 Report Share Posted March 4, 2017 (edited) Depends on a couple of factors , Are you using an Armalite Carbine Receiver Extension ( Buffer tube ) & the correct 308 Buffer spring , which should using be an AR 15 Buffer. If so you can use the different weight AR 15 Buffers , H1 , H2 , H3 . Or do you have a DPMS/SR25 type Rifle & calling it an AR 10 , then thats a whole different answer , because DPMS uses only one Carbine 308 Spring & one 308 Carbine Buffer , unless you want to pay for a custom made one ( Heavy Buffers ) & its Spring ( Todds Flat wire Spring ) As far as what or how to determine which weight will work the best , testing is really the only way, but for the DPMS/SR25 type , the std. DPMS Components work fine & the AR 10 , a H2 buffer with their Spring . Some like adj. Gas Blocks to really tune their Gas System . Its all about what you have & what you are looking to accomplish . Edited March 4, 2017 by survivalshop Quote Link to comment Share on other sites More sharing options...
Sardog72781 Posted March 4, 2017 Author Report Share Posted March 4, 2017 Survivalshop, I have a DPMS (Aero precision) upper and lower. I would like as smooth an action as possible with in a reasonable $ range. So what I gather from your statement is; use a "DPMS" compatible buffer and spring with a mid-length gas system. Right? Is the difference in Armalite and "DPMS" versions the part size.. i.e. buffer tube diameter, and upper barrel orifice size? I'm just trying to wrap my mind around why the two aren't compatible. Thanks for the help!! Quote Link to comment Share on other sites More sharing options...
shepp Posted March 4, 2017 Report Share Posted March 4, 2017 38 minutes ago, Sardog72781 said: Survivalshop, I have a DPMS (Aero precision) upper and lower. I would like as smooth an action as possible with in a reasonable $ range. So what I gather from your statement is; use a "DPMS" compatible buffer and spring with a mid-length gas system. Right? Is the difference in Armalite and "DPMS" versions the part size.. i.e. buffer tube diameter, and upper barrel orifice size? I'm just trying to wrap my mind around why the two aren't compatible. Thanks for the help!! Also bolt face? IIRC Quote Link to comment Share on other sites More sharing options...
Sardog72781 Posted March 4, 2017 Author Report Share Posted March 4, 2017 Shepp, Thanks! I do better with illustration. Quote Link to comment Share on other sites More sharing options...
washguy Posted March 4, 2017 Report Share Posted March 4, 2017 Sardog check this out...it will help you Wash Quote Link to comment Share on other sites More sharing options...
392heminut Posted March 7, 2017 Report Share Posted March 7, 2017 Sardog, whether you have an Armalite or DPMS upper has absolutely no bearing on what buffer and spring you use! The question is, do you have an Armalite or DPMS length BUFFER TUBE? The Armalite tube is 7&5/8" internal length and will use AR-15 carbine buffers. The DPMS type buffer tubes are 7" internal length (same as an AR-15 carbine buffer tube) and require the use of the shorter DPMS 308 buffers and springs. Quote Link to comment Share on other sites More sharing options...
blue109 Posted March 7, 2017 Report Share Posted March 7, 2017 Think of it like this... The 308AR has a longer carrier than an AR15..So it needs more room to operate. DPMS and armalite went about solving the issue 2 different ways. DPMS decided to use a standard AR15 buffer tube with a special shortened buffer. ARMAILITE decided to use a standard AR15 buffer with a longer buffer tube. For rifle length stocks, they both use standard AR15 rifle extensions with shortened buffers. You can use either complete system on either style rifle, just be sure you aren't mixing and matching. Not sure there is really a best weight. All these guns are different and a little quirky. Most like heavier buffers, some don't. You can run a carbine setup on an 18" mid no problem. Quote Link to comment Share on other sites More sharing options...
John W. Posted December 20, 2021 Report Share Posted December 20, 2021 I tried using my suppressor on my DPMS Panther Bull Barrel and it stovepipes the next round aka it ruins it. It works fine on the intended rifle (.300 whisper) but seems to catch the next round and crush it as it tries to chamber. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted December 20, 2021 Report Share Posted December 20, 2021 How about a new thread with more information on the rifle. This is 4 years old Quote Link to comment Share on other sites More sharing options...
John W. Posted December 20, 2021 Report Share Posted December 20, 2021 Sounds good, start a new one from the top or carry on here? Just got back from the shop so I can go down and get specs on the DPMS and let me know if/how we start a new thread. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted December 21, 2021 Report Share Posted December 21, 2021 Go new Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.