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Geissele Super 42 Rifle Length Spring
$34.00 $33.99
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Most Helpful Positive Review Silence is golden
Purchased this to go in my 18" "SPR" type build I put together several years ago. Rifle has a plane jane A2 stock/rifle length tube setup, rifle lenght gas. Rifle has been a sweet shooter since day one...dead-nuts reliable and soft shooting. Only thing that sucked was that A2 twang. Decided to give this a try with some OpticsPlanet bucks I had. Surprised to say it all but eliminated any sound from the stock.
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g$ 42 braided spring

by J, Verified Owner from TX, United States Written on January 31, 2026
Used to pair with an a5 buffer. Great spring. Quality product.
Would recommend: Yes
Was it helpful to you? Yes | No

geissele buffer spring

by john doe, Verified Owner from AL, United States Written on January 30, 2026
The quality and redundancy of this is worth the money if you got a little extra money to throw at a build and is definitely worth having in a more “Duty” type rifle that you’re wanna run full time
Pros:
  • Quality
  • redundancy
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Best spring ever!

by Rocky, Verified Owner from AL, United States Written on January 15, 2026
Hands down the best spring made for AR's. Eliminates the twang and runs a RareBreed frt with H2 buffer flawlessly on my BCM!
Pros:
  • Stronger than regular spring with its 3 wire coil
Cons:
  • None
Best Used for:
  • Running a RareBreed FRT
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Super 42 buffer

by Tav, Verified Owner from NV, United States Written on December 28, 2025
Works well, nice upgrade in feel from standard carbine buffer spring.
Pros:
  • A +
Cons:
  • None especially at price point
Best Used for:
  • Recoil absorption
Would recommend: Yes
Was it helpful to you? Yes | No

A dang good buffer spring to buy!

by Noah Couch, Verified Owner from OR, United States Written on December 25, 2025
This piece is amazing, truly a dang thing of glorious genius. Not only has it dampened the sound when the rifle cycles, but it has brought the recoil of the weapon down pretty decently. A recommend for any and all new to the AR-15 platform of rifles.
Pros:
  • Less recoil
  • Sound Dampens
Cons:
  • None
Best Used for:
  • shooting
Would recommend: Yes
Was it helpful to you? Yes | No

A very great replacement for any buffer spring that comes with the Lower you may buy!

by Noah Couch, Verified Owner from OR, United States Written on December 4, 2025
It's a great buffer spring so far, the pull on the charging handle is a little stronger because of how the spring is made, but the is a slight negative the greater benefits of it. The rattle can noise is completely gone, and it definitely reduces the recoil of the weapon overall. Definitely an inexpensive upgrade to get when you can.
Would recommend: Yes
Was it helpful to you? Yes | No

Works great!

by Rusty Shackleford, Verified Owner from VT, United States Written on May 18, 2025
Just what I expected from a Geissele. Added this and a spikes 5.5 buffer for the sfar .308, works great, kills recoil
Would recommend: Yes
Was it helpful to you? Yes | No

Top quality springs!

by W., Verified Owner from CA, United States Written on April 25, 2025
I absolutely love these springs, not too much quieter than the standard ones, but they hold oil in the braids. I run these in several setups, both carbine and rifle lengths,5.56, 7.62x39, and .308. Unfortunately this particular one does not come with a buffer weight.
Would recommend: Yes
Was it helpful to you? Yes | No

Thus buffer spring Works

by Dave, Verified Owner from IA, United States Written on April 17, 2025
I ordered this because the factory buffer spring had loud audible twang when shooting my 224 Valkyrie semi auto. This Geisssle spring for a fixed, non-adjustable stock completely eliminated the previous buffer spring noise. 5/5. It works.
Would recommend: Yes
Was it helpful to you? Yes | No

Best spring for the money using WWII tech!

by Lrod, Verified Owner from WY, United States Written on April 15, 2025
Not sure if many people know this but the Super 42 spring is designed after the German MG42 machine gun! I think that's pretty cool! Anyway this spring is the only spring I use in all of my ARs! I find it simple to use and very affordable. It takes out the harmonics in the buffer tube and just works great. You can tune it with different buffers if you wish. I am pairing this spring with a BCM MK2 recoil mitigation system which is a rifle length tube. I was using a carbine length spring in this tube with a heavy buffer just to get me by and it worked okay but I think with the rifle length spring it will cycle much better. I have not found a better upgrade for the money. Like I said the first thing I do when I get a AR is put this spring in it. It eliminates the twang of a standard spring so you don't sound like you're shooting a pogo stick.
Would recommend: Yes
Was it helpful to you? Yes | No
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