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+--- Thread: MY 24" 6.5 is unlocking early- solutions (/showthread.php?tid=6440)
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MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-28-2013
I have a 24" BHW barrel and I am having early unlocking issues. I purchased a .936 PRi adjustable gas block, unfortunately it will not work with my Geissele SMR MKII forend. I looked around a bit and I do not think there is a .936 adjustable gas block that will fit under it, as it is a 13" forend it passes over the back end of the block. I am looking at heavy buffers, but all I can find it rifle length is an 11 oz is this to heavy? Would an Endine Hydraulic Recoil Buffer help solve my issue?
MY 24" 6.5 is unlocking early- solutions - Allen - 09-29-2013
I have heard that the JP captured recoil spring has more pressure than a normal spring. I think someone else sells a "high power" spring, which should help.
MY 24" 6.5 is unlocking early- solutions - Tedward - 09-29-2013
MTNmyMAG Wrote:I have a 24" BHW barrel and I am having early unlocking issues. I purchased a .936 PRi adjustable gas block, unfortunately it will not work with my Geissele SMR MKII forend. I looked around a bit and I do not think there is a .936 adjustable gas block that will fit under it, as it is a 13" forend it passes over the back end of the block. I am looking at heavy buffers, but all I can find it rifle length is an 11 oz is this to heavy? Would an Endine Hydraulic Recoil Buffer help solve my issue?
As fr the Gas Block, a JP will do it I think. It is 1.44 at the larges side measurement so should fit under a 1-7/8" inside diameter HG. Here is the link. http://www.jprifles.com/buy.php?item=JPGS-8
As for the buffer, I have an really like the JP Silent Capture as Allen was saying. http://www.jprifles.com/buy.php?item=JPSCS-15 They also have additional springs to adjust further but I have the standard spring on my 24" Barrel and wit the adjustable gas block, mine cycles fine....http://www.jprifles.com/buy.php?item=JPSCS-PACK15
MY 24" 6.5 is unlocking early- solutions - KentuckyBuddha - 09-29-2013
The JP Spring is great...I have heard that they give a military discount of 20% which sadly I learned AFTER I got four of them.
MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-29-2013
I measured the width inside the SMR at 1.35. What I did tonight and have not tested yet was to remove the steel weights and aluminum spacer from inside the A2 buffer and fill it completely with lead shot. All I had to weight it with was some crappy kitchen scales but they show a weight increase of over 2 oz. My Grendel functions fine, but I am getting a lot of brass swipe on my case deflector and severely dented case necks. I have read this is a sign of early unlocking.
MY 24" 6.5 is unlocking early- solutions - GLShooter - 09-29-2013
BTE will be producing a low pro adjustable for the 0.936 barrels. Give them a call Monday. I was holding one of the prototypes in my hands last month. Be sure and tell George that Greg sent you.
Greg
MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-29-2013
GLShooter Wrote:BTE will be producing a low pro adjustable for the 0.936 barrels. Give them a call Monday. I was holding one of the prototypes in my hands last month. Be sure and tell George that Greg sent you.
Greg
Who is BTE? Thanks
MY 24" 6.5 is unlocking early- solutions - GLShooter - 09-29-2013
MTNmyMAG Wrote:Who is BTE? Thanks
Battle Tested Equipment. http://www.bte-usa.com
You want the micro adjustable type listed on the site.
Greg
MY 24" 6.5 is unlocking early- solutions - Tedward - 09-29-2013
GLShooter Wrote:Battle Tested Equipment. http://www.bte-usa.com
You want the micro adjustable type listed on the site.
Greg
Good link Greg, thanks, I'll be checking with them on Monday too. Good pricing as long as the quality is there...
MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-29-2013
Yes Ill be contacting them as well, as soon as I can sell this Pri .936 adjustable
MY 24" 6.5 is unlocking early- solutions - mongoosesnipe - 09-29-2013
mgi makes an adjustable gas tube http://www.midwayusa.com/product/2979396319/mgi-adjustable-gas-tube-ar-15
i have heard good things it only negative review i have read was a guy who had it fail after 3 full auto mag dumps
jp captured recoil http://www.midwayusa.com/product/316607/jp-enterprises-silent-captured-recoil-buffer-spring-ar-15
Tubb SpeedLock Systems Flat Wire Buffer Spring http://www.midwayusa.com/product/693755/tubb-speedlock-systems-flat-wire-buffer-spring-ar-15-rifle-chrome-silicon
then there is adding weight to the carrier or buffer
MY 24" 6.5 is unlocking early- solutions - LRRPF52 - 09-29-2013
OP: What's your gas port diameter, if you don't mind checking? A heavy buffer and/or spring is how I would approach this before adjustable gas block.
If your port is too large, and you choke it with a turned down adjustable gas block, the port becomes subject to more torch effect, leading to early port erosion and accuracy degrading.
MY 24" 6.5 is unlocking early- solutions - kamrr4437 - 09-29-2013
Tubbs makes a flat wire spring that is fairly cheap that you could install. I have one. Its suppose to be stronger and help with dwell time. Its the Tubbs Flat Wire spring.
MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-29-2013
LRRPF52 Wrote:OP: What's your gas port diameter, if you don't mind checking? A heavy buffer and/or spring is how I would approach this before adjustable gas block.
If your port is too large, and you choke it with a turned down adjustable gas block, the port becomes subject to more torch effect, leading to early port erosion and accuracy degrading.
When I get a chance Ill pull the gas block again and see what it measures. I had this barrel custom profiled after I bought the DPMS lo pro gas block that is on it. So I had him leave the gas block journal the length of the DPMS gas block, so it would be best to stick with it anyway as I would have to have the gas block journal turned down to match the length of whatever block I was using and in that case I might as well go to a .750 Gas block and journal so it would fit.
MY 24" 6.5 is unlocking early- solutions - MTNmyMAG - 09-29-2013
Thanks for all the responses, I will probably end up with a tubbs flat wire spring and maybe one of the HeavyBuffers 11 oz buffers.
MY 24" 6.5 is unlocking early- solutions - mongoosesnipe - 09-29-2013
MTNmyMAG Wrote:When I get a chance Ill pull the gas block again and see what it measures. I had this barrel custom profiled after I bought the DPMS lo pro gas block that is on it. So I had him leave the gas block journal the length of the DPMS gas block, so it would be best to stick with it anyway as I would have to have the gas block journal turned down to match the length of whatever block I was using and in that case I might as well go to a .750 Gas block and journal so it would fit.
You can use an adjustable gas tube instead of gas block... http://www.midwayusa.com/product/2979396319/mgi-adjustable-gas-tube-ar-15
MY 24" 6.5 is unlocking early- solutions - joker31 - 09-30-2013
Heavybuffers.com XH buffer and a Wolff Heavy Buffer Spring, works great for my 18"....perfect timing and empties all fall in a coffee can at the 4 oclock position.
MY 24" 6.5 is unlocking early- solutions - Bwild97 - 09-30-2013
It took all 3 devices to control the early unlocking for my rifle, Adj. gas block, Tubbs CWS, and a wolff extra power spring.
MY 24" 6.5 is unlocking early- solutions - WildBill3/75 - 09-30-2013
What are all the signs exactly? I have a 20" barrel with rifle length gas system. Running Tubb flatwire spring, m16 Bolt carrier, and 5.12oz rifle buffer. All my cases are extremely clean but I get half moon marks from the ejector on 1/2 of my fired cases using factory hornady 123gr amax ammo.
MY 24" 6.5 is unlocking early- solutions - WildBill3/75 - 09-30-2013
Think I will buy 1-2 H3 buffers just to play around with tungsten weights...doing the math 5 weights in the rifle buffer should bring the buffer to around 10oz which would still be a lot cheaper than one of the 11oz XH buffers.