Buffer Technologies Enidine Hydraulic Recoil Buffer AR-15 Carbine 3-1/4"

Product #: 380841
| Manufacturer #: EARR
Status: Available
   Should Ship Next Business Day
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Drop-in replacement buffer absorbs recoil, reducing bolt wear and creating faster follow-up shots. Also perfect for reducing the cyclic rate of full-auto rifles. Measure the length of your firearms current buffer tube (while compressed) to determine which buffer tube will work for your application. The AR-15 Carbine buffer measures 3-1/4", the AR-15 Rifle buffer measures 5-7/8".

Application Charts & Information

Overall Rating:
4.1 out of 5
Used this Product?Rate It
5 stars
Jeremy S of San Antonio, TX
Date posted: 4/28/2009
Installed this with a Cooley Comp on my target rifle, fired 200 rds yesterday and was able to watch all rounds impact and actually tightened up groups. Bolt locked to the rear EVERY TIME, and I was shooting bulk ammo, recoil was dramatically reduced, as I wanted in my varminter. Performed flawlessly and can't wait to drop one in my AR-10. Great product.
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5 stars
R G of Moraga, CA
Date posted: 2/6/2008
Be aware that this is for collapsible stocks, carbine length. Typically carbine stocks ARE collapsible on AR-15s so this is not unusual. I have several of these and I put them in a .223, 6.5 Grendel and a .50 Beowulf. In a .223 the recoil reduction is there but not significant - instead what you get is extremely good follow-up shot capability and steadiness. Absolutely worth it in a .223 for anyone who actually knows what a good gun should do. 6.5 Grendel gets very similar benefits and it is more important for 6.5 because it's far more accurate at range. The largest benefits are certainly for the .50 Beowulf due to the significant amount of recoil. Alexander Arms makes a muzzle brake that works very well for the .50 Beowulf and when this buffer is combined with that and a Wolff carbine length enhanced buffer spring the felt recoil goes down immensely. I would compare the un-dampened recoil of a .50 Beowulf to a 12 gauge shotgun, but after this buffer, the muzzle brake and the enhanced buffer spring it's below that of a 20 gauge shotgun and is much more controllable. I would call this useful for .223, necessary for accurate long range guns, and vital for large calibers. I mean really - a .50 Beowulf will chew your arm off. With the things I mentioned it's equally as powerful but with far less punishment of your shoulder.
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33 found it helpful |
2 did not
5 stars
Joe A of Steubenville, Oh
Date posted: 11/23/2008
Amazing, I'm currently using it in Iraq now and for shooting controlled pairs (double tapping) you can shoot twice as fast and still shoot accurately because of the recoil reduction. After some of my buddies shot my weapon they themselves have actually purchased one because they were so impressed. I would highly, HIGHLY recommend this for anyone that actually uses their weapon.
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12 found it helpful |
3 did not
5 stars
Court Eilertson of Seal Rock, OR
Date posted: 10/2/2007
A noticeable reduction in felt recoil in a 6.8 SPC, less shock on optics and cheek during sustained fire. Overkill for a .223 caliber though. Very effective in higher caliber recoil reduction.
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22 found it helpful |
3 did not
5 stars
Mike J of Tulsa, OK
Date posted: 10/24/2008
I used the buffer for the collapsible stock in my M-4 in IRAQ. I never once had the problem of the bolt not locking to the rear after firing the last round in a magazine. Of course I was using NATO rounds rather than weak store-bought rounds nor was I using a lightened bolt carrier assembly and adjustable gas block. It performed exactly as described on semi but it proves its worth on 3 round burst. I was quite impressed with how easy it was to keep my carbine for the most part on target during multiple 3 round bursts with minimal muzzle rise. I highly recommend this product for any soldier, marine, or corpsman that is or will be carrying an M-4 in country during their deployment.
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14 found it helpful |
2 did not
5 stars
Kevin Reed of Annapolis, MD
Date posted: 12/13/2006
I installed the Enidine recoil buffer in a Rock River middie. The middie has a gas port that is further forward in the barrel then that of a standard carbine, but further back than a 20 inch rifle barrel. The longer gas tube in a middie is notably softer recoiling than that of the carbine, but still harsher than a rifle. I found that the buffers greatest asset is not really recoil reduction as the 5.56mm round is not really a shoulder pounder. The real advantage is target acquisition with follow up shots. The muzzle just seems to twitch rather than jump off target. The recoil feels like it is being spread out over a longer interval. The only negative I can find with it is that it takes a bit more effort to lock the bolt open with the cocking lever because you have to compress the internal spring in the buffer at the end of it's travel. I would recommend it to anyone shooting a M4. I think it be less effective in a full length barreled rifle though.
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64 found it helpful |
1 did not
4 stars
John Baumgaertner of Chipley, FL
Date posted: 11/22/2006
Beware: Though MidwayUSA listed this as for a "carbine" as opposed to the "rifle" model, this is actually for collapsible stocks, as stated on the package. The "rifle" one is for A2 size buttstocks. If your carbine does not have a collapsible stock, this buffer won't fit. Since it won't fit my carbine, I haven't tried it. To post this heads-up I had to give it a rating, so I gave it 4 stars based on the fact that it looks like a quality product and it doesn't rattle! I'm returning it and I've ordered the "rifle" model for the A2 buttstock on my 16" carbine.
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62 found it helpful |
27 did not
4 stars
Harry P of NYC, NY
Date posted: 11/24/2009
Used for weapons qual on USGI M4. Good recoil reduction but would not lock bolt to rear after magazine empties regardless of what GI stock magazine is used. Also had issues manually locking bolt to rear, had to cycle the bolt several times. Did some research afterwards and realized that the Enidine is about 2.5 inches longer that a stock buffer. May try with a weaker spring.
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4 stars
Jeff Smith of Tustin, CA
Date posted: 1/28/2009
Seems to be well made, but didn't work for my application, which is shooting moderately powered .223 reloads in 16-inch Bravo upper (Bushy lower) with 6-position stock & PMags and USGI mags. Result: bolt carrier failed to lock back. Also tried it with some old Winchester white box 5.56 with mixed results... but I'm looking for more reliability than mixed results. I combined this product with a new muzzle brake and was primarily hoping for mitigation of muzzle rise during scope use, but was disappointed. I suspect this may shine in full-auto use, but for my plinking it didn't do much for me.
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3 found it helpful |
1 did not
4 stars
Ben Carleton of Medford, OR
Date posted: 10/8/2009
Very good product! I popped it in my bushmaster and it performed almost flawlessly. The almost comes from the same problems a few other people had, bolt not locking to the rear on the last shot. Which isnt a big deal unless you are using this in combat.
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1 found it helpful |
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3 stars
STEVE WOLFE of SANDY, UT
Date posted: 5/14/2009
I built two identical mid-length rifles, one rifle received one of these buffers. Shooting them side-by-side, this made the recoil impulse a little smoother - but the difference is VERY small. I do not plan on buying any more of these.
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2 found it helpful |
3 did not
3 stars
Albert Pilkington of Fairmont, WV
Date posted: 9/2/2008
In a carbine stock the bolt will not lock back on the last round. If you try this product for a 223 you are going to use in 3 gun competition it will also not strip rounds if you use a lightened carrier and adjustable gas block. The length of compression needs to be about a quarter inch to a half inch shorter for use with this application. Though I did not try it I believe if you used an extension on the carbine buffer tube it would work.
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4 found it helpful |
3 did not
3 stars
J Rose of San Antonio, TX
Date posted: 3/25/2008
Installed it in a .223 Bushmaster Modular carbine. The buffer helped reduce muzzle jump, especially when shooting from unsupported positions. The bolt was moderately difficult to manually lock to the rear, and would never lock to the rear on the last shot. My friend then put it in his AR-15 (unknown brand/model), and the bolt would not lock to the rear on the last shot for him either. (Magazines were not the issue as bolt always locked to the rear with original buffers). This is a viable product if you do not care about your bolt locking to the rear on the last shot. I would not recommend it for anyone who needs to do quick reloads or needs total reliability for a defensive/duty weapon.
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11 found it helpful |
4 did not
2 stars
Joe P of LAS CRUCES, NM
Date posted: 8/8/2009
Very well manufactured but does not cycle my M4. Fires, ejects, but does not feed another round from the mag. Tried with and w/o Wolff XP spring, made no difference. Bang! Click....
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3 found it helpful |
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