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Posted: 1/2/2014 3:01:24 PM EDT
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Sorry if this has been beaten to death, couldn't find a definite answer anywhere.
I'm buying a 14.5 BCM BFH mid length upper, and plan on using a spikes nickel boron m16 carrier, and currently have a carbine weight buffer. Would an H buffer run smoother, or would it be too heavy coupled with the M16 carrier and lead to cycling problems? On an unrelated note, I'm also curious if anyone offers barreled uppers less hand guards with a low pro gas block, the only thing I can find have the FSB/gas block |
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As far as I know there hasn't been a standard for the gas port diameter on mid length barrels. So unless someone has the exact same barrel as you, recommendations can be hit and miss. I will tell you I have a 14.5" Noveske chrome lined barrel, RA full auto BCG, Sprinco enhanced buffer spring, and an H3 buffer. It has eaten up everything I've run through it to include 55 gr Wolf, XM193, M855, MK262 and others I can't recall right now.
I fortunately had an H and H2 laying around to try. When my rifle easily shot weaker ammo, I went out and bought an H3, and all is good still. I would recommend starting at an H buffer. I don't think you'll have any problems going that route. |
| I have a RRA midlength that was cut to 14.5" and pinned. I use a H buffer and a run of the mil carbine spring. FA carrier and it cycles even Tula without issue. At one point I used a H2 but that buffer went to another gun and the H went into this one. Not that much of a difference in felt recoil between those two. |
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Quoted:
I have a RRA midlength that was cut to 14.5" and pinned. I use a H buffer and a run of the mil carbine spring. FA carrier and it cycles even Tula without issue. At one point I used a H2 but that buffer went to another gun and the H went into this one. Not that much of a difference in felt recoil between those two. How much difference in recoil is there in a carbine vs an H or H2? |
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Quoted:
How's lower power ammo run? Still fine? http://www.ar15.com/forums/t_3_118/630028_Which_14_5_midlength_barrels_have_properly_sized_gas_ports_.html&page=2#i6257319 https://www.ar15.com/forums/t_3_66/631410_BCM_14_5_Midlength_problem.html&page=2#i6280366 http://www.ar15.com/forums/t_3_4/630199_14_5_Middy___BCG_and_Buffer___theory_question.html&page=1#i6259433 http://www.ar15.com/forums/t_3_118/631049_First_Build__Have_a_reliability_question.html&page=1 I would not go any heavier than a carbine buffer unless you KNOW you have too much energy on the operating cycle (which seems doubtful with the history of BCM 14.5 mids) |
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Quoted:
Sorry if this has been beaten to death, couldn't find a definite answer anywhere. I'm buying a 14.5 BCM BFH mid length upper, and plan on using a spikes nickel boron m16 carrier, and currently have a carbine weight buffer. Would an H buffer run smoother, or would it be too heavy coupled with the M16 carrier and lead to cycling problems? On an unrelated note, I'm also curious if anyone offers barreled uppers less hand guards with a low pro gas block, the only thing I can find have the FSB/gas block I have a noveske 14.5 barrel with Blk rain ordnance nib bcg and the st-t2 buffer. I don't think you will find it smoother. If you want smoother I'd stick to carbine buffer. The t2 buffer will, if anything, will make it more reliable. |
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How much difference in recoil is there in a carbine vs an H or H2? Quoted:
Quoted:
I have a RRA midlength that was cut to 14.5" and pinned. I use a H buffer and a run of the mil carbine spring. FA carrier and it cycles even Tula without issue. At one point I used a H2 but that buffer went to another gun and the H went into this one. Not that much of a difference in felt recoil between those two. How much difference in recoil is there in a carbine vs an H or H2? With mine it gives it just a slight difference. IMO just run the carbine buffer and let her rip. If you feel that the recoil is causing issues with staying target with follow up shots then go with a H. Keep in mind that technique also plays a big part of the felt recoil in the rifle. Square up on the rifle and get a solid repeatable grip and stance. |
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I built my own from a BCM 14.5 BFH mid lightweight with a WMD NiB full profile carrier. I ran it in cold weather with a generic carbine buffer and with a ST-T2. It never hiccuped.
I can't give an opinion on smoothness because I was shooting mostly supported at distance with the carbine buffer and offhand closer in with the ST-T2. |
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How's lower power ammo run? Still fine? Quoted:
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I run a Spikes St-t2 in a BCM 14.5 mid and it runs just fine. Try it and see if it works. I'm sure it will. How's lower power ammo run? Still fine? I reload and shoot lower powered ammo. Not Tula lower power but lower than most factory ammo. It runs just fine. The 14.5 BCM lightweight I have is my wife's build and she said she could notice a difference between the T2 and carbine buffer. It does help with the felt recoil. Will it function in your gun? Who knows till you try it. |
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