Glock to replace Gen4 Recoil Springs for Free

Glock has begun a program to replace the recoil spring assembly (RSA) for Glock Gen4 pistols. If you send in your recoil spring, they will send you back a replacement. They have not specified exactly what was wrong with the previous RSA design.

Replacement Program Limited to Gen4 Model with GLOCK Covering All Shipping Expenses

SMYRNA, GA – September 7, 2011 – GLOCK Inc. announces that it is voluntarily exchanging the recoil spring assembly (RSA) on its new Gen4 pistols shipped since August, 2009, to ensure each pistol’s performance meets the company’s demanding standards. With several variations of the RSA in the market today, GLOCK’s goal with this voluntary exchange is to standardize the RSA to gain the best possible performance in each pistol.

GLOCK’s product development team has modified various elements of the RSA. The new RSA compensates for all design modifications made to the Gen4 and allows the pistols to function up to GLOCK’s rigid quality standards and reliability goals.

Consumers should note that Gen4 G26 and G27 models will not require a modified recoil spring.

“We are moving proactively and quickly to standardize this part of the pistol. This is a voluntary exchange specifically for the new Gen4 models,” said Gary Fletcher Vice President GLOCK Inc. “We have developed a program for consumers to send in their existing recoil spring assemblies and receive new ones at no cost.”

The replacement of the Gen4 pistol RSA can be performed as part of the regular field-strip process; consumers do not need to take the Gen4 pistol to an armorer. Consumer’s wishing to participate in the exchange program are urged to call 1-877-745-8523 to order their new recoil spring.

For more information on the details and shipping requirements on the replacement program, visit

UPDATE: I posted an image of the wrong spring. A chart of recoil springs is at Guns, Holsters & Gear.

Steve Johnson

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


  • Sian

    Of course Glock does not admit that anything was wrong.

    Everyone that’s dealt with them though knows the G17gen4 had some pretty profound cycling issues.

  • “Perfection”

  • Lance

    Makes you want to buy older Glock gen 1 or 2, no new replacements there.

  • Tim

    I talked with the Glock reps at the NRA show about this earlier this year when I was looking at upgrading my duty Glock. Basically they said nothing was “wrong” with the original Gen 4 spring, it was just a stronger spring designed for heavier law enforcement ammo (+P etc.). They said the issues came about when folks were using inexpensive, lower power 9mm rounds. If you run the hotter stuff in them they’re supposedly fine but, most of us are probably going to run less expensive stuff in them for most of our shooting since we don’t have a police departments budget buying us ammo.

    If I recall right, I think they said that the guns being sold through their law enforcement distributors will continue to use the original, heavier Gen 4 spring. Unless that has changed recently.

  • Too easy. TEH GUMMINT told them to install a “tracking chip”, and in order to comply they had to do this recall.

    You’re only paranoid if they’re not really after you.

  • jpcmt

    And all the glock fanbois on glocktalk who cringe at the idea that any part in an glock is a bad design or in need of replacement (i asked about stainless aftermarket rod/springs for my Gen4 G27 and got an earfull) all get to eat this. Although they’ll still claim it was fine and perfect still.

  • Andrew (European Correspondent)

    After I saw that someone had posted my G19 Gen 3 vs G19 Gen 4 comparison video at GlockTalk last year, I attempted to register on the forum (as VuurwapenBlog) to thank the poster.

    Several of the “senior” members on the forum, however, quickly started to bash me and the video, saying that I was not shooting the weapon properly, and that the Glock Gen 4 recoil spring was just fine.

    Coincidentally, my registration on the forum was never (and has still never been) approved.

  • J.T.

    Now if only they would get rid of the MIM extractors and go back to the old ones, everything would be fine.

  • If the first Glock was “perfection” then why do they keep re-designing it????

    A 1911 is still a 1911 100 years later. Nuf’ said.

  • jdun1911

    Andrew (European Correspondent),

    Glock talk is really bad. I stop going to the site because there are a lot of very dumb people.

    Personally I’ll stick with the 2nd gen Glocks. To me they are the best Glocks out there.

  • Shiznit

    This may sound dumb, but how do you know if you have a Gen4? Any insight would be appreciated! And I apologize for my ignorance. I have a Glock 30 (.45acp subcompact) and a Glock 20c (10mm).

    Thanks everyone!!!

  • CAManley

    Zermoid, the 1911 is far from the same pistol it was 100 years ago. if you like 1911’s, thats cool, but don’t try to kid anyone that it is perfect or the exact same today, as JMB designed it.

    Series 70, 80, no bushing models, 2 different grip sizes with the 2 styles of main spring housings, 2 different extractors styles, the list goes on and on.

  • Marsh626

    This is why I bought a Generation 3 this year.

    I don’t trust the Generation 4’s.

    I’m sure they work fine.

    But I want the perfection Glock is known for.

    I’d gladly take more reliability over slightly less recoil.

    They should have stuck with the simpler single spring design in my opinion.

    The double spring seems like a bit of a selling gimmick – even though I’m sure it’s recoil reduction is sound engineering.

    But knowing Glock, I was sure they’d figure it out.

    And it seems they have with this new spring package – I hope.

    I’ll wait for reliability reports on the new spring redesign before I ever consider picking up a Generation 4 in the future.

  • Mechman

    The link for the corrected picture doesn’t link to that site, it links back to an article on this site.

  • subase

    The Glock design was a fluke made by non gun designers. They just had a crack at designing a gun and it turned out to be a ridiculously cheap to make, reliable, light simple and safe pistol. That’s why Glock has never done anything except release the same design in different calibers for the past 30 years. Now that they feel threatened by designs that have caught up to them, any change they make on the pistol will no doubt be a screw up.

  • Erik

    jdun1911, I agree, although I stick to both the 2nd and 3rd Gen Glocks. 3rd seems to be about as good IMHO, but I haven’t had any 3rd gens for long enough to experience any issues yet. Only about a year.

  • BobWang

    Shiznit, Gen 4s will have “Gen 4” after the model number on the slide.