HK Pistol Parts
- Accessories
- Magazines
- HK VP9
- HK VP40
- HK 94
- MP5 SD
- MP5 Clones
HK .22lr Rifles
- HK MP5
- HK 416
- GSG522
- SP89, MP5K-N
MP5 40
- MP5 10
- MP5 .357
- Brugger & Thomet
HK 91
- HK G3
- PTR 91
- CETME, C308
HK 93
- HK 33
- HK 53
- Vector Arms V53 V93
- C93
HK MR556
- HK 416
- HK 416A5
- HK CR556
HK MR762
- HK 417
- HK MR762 LR
HK G36
- HK G36K
- HK G36C
- HK SL8
HK USC Carbine
- HK UMP 45
- HK UMP 40
- HK UMP 9mm
- MSG90
HK 21
- HK 21E
- HK 23E
- HK 11
HK Apparel
- Shirts
- Hats
HK Aficionado
- Posters
- Stickers
- Calendars
HK Knives
- Benchmade
HK 300
- HK G41
- HK SL6
Recently Added Products
Pre-owned HK Products
Glock Magazines
AR-15, AK-47, Glock Parts
Clipped & Pinned Services
Emergency Preparedness
Browse Catalog
Gift Certificates

Heavy Recoil Buffer HK 91, G3, & PTR-91 Rifles

SKU: HKP-01067
Brand: USA

The HK Heavy Recoil Buffer For HK Style Firearms.

Made 100% in the USA by one of best HK gunsmiths in the business. Each unit is based on the original HK German 2 stage factory heavy buffer, rigorously tested & proven to be the very best & made from the very best in materials. This enhanced heavy buffer offers an improved design as even more buffering enhancements were made in the design and manufacture of this HK G3 heavy buffer. There is NO FINER buffer available than the HK heavy buffer. If you want the best buffer for HK or clone than this is it!


  • HK 91, G3, PTR
  • SAR-3/8, FMP, Vector, SR9, PTR PDW, V51, etc
  • Other HK custom builds and clones


Improved Buffer over the HK factory standard buffer & was designed for heavy semi or full auto use.

Reduces recoil felt by shooter.

Aids in faster follow up shots.

Reduces the wear and tear on internal parts and prolongs weapons longevity.

US Made Heavy Buffer has been touted as being even more effective than the HK factory German G3 heavy buffer, because of the fourth break spring and enhanced design features.

This is the highest quality buffer we have used encountered. HKParts highly endorses this upgrade to your HK rifle if you want an even sweeter shooting experience.

Shooters Tip:

To really reduce recoil & improve quicker follow up shots HKParts recommends:

  • Heavy Buffer
  • PWS Compensator
  • Heavy Rubber Buttpad
  • All three of these items are found listed below

For an even better shooting experience, this combination above will give you the best and most effective set available for your HK Rifle. Happy & safe shooting from HKPARTS!

Please note: Because the heavy buffer is larger in diameter (.90 inches in diameter) & longer than a standard G3/91 buffer. It is likely that your particular stock application will require fitting in order to use the heavy buffer in your A2 or other fixed stock (PRS, Etc). Neither these nor any of the standard buffers fit in the A3 style (retractable) stocks. The rear screw is optional as well and is not required or needed. Only the front hardware at the 6 & 12 o'clock positions are required for install.

Price: $199.95
In Stock
Save to my Wish List
Heavy Recoil Buffer HK 91, G3, & PTR-91 Rifles
Heavy Recoil Buffer HK 91, G3, & PTR-91 Rifles
Previous Item   Next Item
Related Items Others Found Useful.
Check the check boxes next to the additional products that you would like to add to the shopping cart, then click on the "Add to Cart" button above. A check box is not shown if a product requires that you select an option or fill out a field. () indicates a required accessory.

HK21E, HK23E Factory Heavy Buffer

HK21E, HK23E Factory Heavy Buffer

Price $249.95

Out of Stock

Clubfoot Stock For HK .308 Rifles - US

Clubfoot Stock For HK .308 Rifles - US

Price $248.95

Out of Stock

Product Reviews

Write your own review

"heavy buffer review"

David williams on 10/27/2009 12:56:16 PM

Overall Product Rating:

this buffer greatly reduces recoil. with the primary weapons muzzle brake i was able to let my 8yr old shot off the bipod,even with a weak shoulder mount he loved it. fitting was simple. Remove the inserted metal piece in the butstock and open up the outer plate a little with a drummel tool. very easy. "no-brainer"

"ptr91 recoil buffer"

Leland Duffield on 2/3/2014 8:31:20 AMVerified

Overall Product Rating:

This buffer is A+. Best one I've see out of three other ones. Shipping, Company, and Buffer all A+++

"PTR91 GI Heavy buffer"

Justin Triebel on 1/9/2013 11:39:33 AMVerified

Overall Product Rating:

Bottom Line if you want a G3 to recoil like a 556 AR this is the way to go, however this is not a simple bolt in install. I'm by no means a professional smith, but came up with way to install the buffer that was very secure. First remove stock, (mine was the slim green plastic HK), Remove the plastic but pad, clamp pad in BOLTED down Vise. Don't plan on reusing it because you'll destroy it trying to remove it. Once removed use 12" screw driver to remove stock buffer tube screw. Now remove the tw... More details

"heavy buffer"

Jason Davis on 3/20/2014 10:44:30 AM

Overall Product Rating:

This buffer is amazing! Nearly cut recoil in half. worth every penny.

"Definite gotta have!!!"

William Doody on 7/25/2011 4:03:07 PMVerified

Overall Product Rating:

I couldn't wait to get to the range after getting this. Combined with the heavy butt pad, the difference was remarkable. I was double tapping nickel sized groups at 100 yards........well, maybe not that good. I was however, shooting at 50 yd indoor range and double tapping within the black of a 12" target with my Eotech. It was actually quite fun, and not much recoil felt through around 100 rounds. A Must have.

"gotta have it, too"

Stephen S. on 2/14/2012 7:50:05 AM

Overall Product Rating:

Calms down the recoil remarkably! Combine this with the PWS compensator, and a better butt pad...and you've got one smooth rifle. Get on target faster after some "double taps", you'll see what I mean.

"Worth every penny"

Patrick Jennings on 4/1/2011 11:47:55 AM

Overall Product Rating:

Great buy. Used it on my prt-91f Makes recoil much more controllable and makes the stock buffer look like a wimpy 5 dollar piece of crap single stage buffer (which it is) compared to this 2 stage huge buffer. Installation wasn't too bad. We used a large reamer on a drill and grinded off the metal around the inside of the metal backplate until the buffer fit through snug. When using a ream make sure to move it around in a circle to evenly shave off the metal. After the backplate is finished you n... More details

"Cut the recoil and enjoy shooting with this"

Christopher on 7/7/2014 1:30:25 PM

Overall Product Rating:

I installed this on a PTR-91F. It took a little work by hand with a needle file to fit into the stock. No biggy really. This buffer easily cuts recoil by a third, and makes it feel less blunt when a shot is fired. It's pricey but well made and it is a very effective upgrade. If I owned a second rifle I would buy another one of these for it. It works that good. Have fun and shoot straight.

"PTR-91 Rifle must have"

eowwarrior on 6/15/2011 10:09:52 PM

Overall Product Rating:

This buffer significantly reduces felt recoil. On the PTR-91 USA made A2 Butt stock, her is what you need to do ... 1) widen the metal end-cap about 1/16" larger. 2) widen the hole in the molded butt-stock slight in the top 1/3 of hole about for about 1" of depth. A dremmel with coarse grit sanding drum took only about ten minutes for both mods.


Amir Rana on 5/17/2012 4:44:44 PM

Overall Product Rating:

Buffer worked great for my PTR-91. Really noticed a difference.