- Description
- 8 Reviews
Just need new pistons? YHM’s Nielsen Pistons are compatible with the YHM Booster Assembly, YHM Sidewinder M2 suppressors and many popular pistol suppressors. Ours are constructed from heat treated 17-4 stainless steel for maximum durability and corrosion resistance. They also feature 10 adjustment points to zero any impact shift. Available in a variety of thread patterns to fit most firearms.
- Weight: 1.40 oz.
- Material: 17-4 Stainless Steel
- 9mm Thread Sizes:
9mm, 1/2”x28, 1/2″x36, M13.5x1LH, - .45 Thread Sizes:
.45 Cal., .578”x28, M16x1LH, M16x1RH, - 10mm Thread Sizes:
10mm/.40 Cal., 9/16” x 24, M14.5x1LH - Made in USA
Will work with Sidewinder M2 suppressors. NOTE: ***Not compatible with the original Sidewinder***
@1-26
8 Reviews
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5
Nielsen Piston
Posted by Joe H on May 4th 2026
Flawless. Great service on helping me with my purchase.
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5
Nielsen Piston
Posted by Bo on Feb 21st 2026
The piston is stainless steel and the machine work is top notch and it installs and runs flawlessly in the YHM booster device. Highly recommend.
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5
FN 509 loves it!
Posted by Lee on Mar 20th 2024
This was a great upgrade to my FN 509, with the R9 suppressor its awesome. It never jammed, didn’t get gassed out, had loads a fun, got used to the slight recoil feel on the wrist, but I’m girl with skinny wrists. I ran many top brands and grains and shot flawlessly, accurate at pistol range 10 yards+.
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5
Nielsen Piston
Posted by Scott Schriefer on Aug 17th 2023
Very satisfied!
Used with an YHM R9. Didn’t notice the extra 10oz hanging on tightly. Improved pattern at 15 yards. -
5
Neilson Piston
Posted by Brian on Apr 3rd 2023
Gotta have this with the Nielsen Booster to run a suppressed handgun. Now my R9 works like it is supposed to. It’s a must have and it works.
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5
Nelson device
Posted by Jeffrey Iiams on Mar 16th 2023
Installed and the firearm runs flawlessly.
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5
Solid piston for r9
Posted by rockie p on Oct 21st 2022
Bought this for my r9 to shoot on 1/2×28 9mm barrels and it fit the yhm booster perfectly everything was awesome! Yhm 2060 for a r9 fit like a dream
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5
Nielsen Pistons
Posted by Marc Gershman on Jul 19th 2022
Excellent quality stainless steel construction, Used in conjunction with a Nielsen booster for my YHM Resonator R9 can for my Glock 19 platform. Easy to install and use. Great pricing and delivery from YHM!!!




Anonymous –
The piston is stainless steel and the machine work is top notch and it installs and runs flawlessly in the YHM booster device. Highly recommend.
Anonymous –
Very satisfied!
Used with an YHM R9. Didn’t notice the extra 10oz hanging on tightly. Improved pattern at 15 yards.
Anonymous –
Bought this for my r9 to shoot on 1/2×28 9mm barrels and it fit the yhm booster perfectly everything was awesome! Yhm 2060 for a r9 fit like a dream
Anonymous –
Excellent quality stainless steel construction, Used in conjunction with a Nielsen booster for my YHM Resonator R9 can for my Glock 19 platform. Easy to install and use. Great pricing and delivery from YHM!!!
Anonymous –
This was a great upgrade to my FN 509, with the R9 suppressor its awesome. It never jammed, didn’t get gassed out, had loads a fun, got used to the slight recoil feel on the wrist, but I’m girl with skinny wrists. I ran many top brands and grains and shot flawlessly, accurate at pistol range 10 yards+.
Anonymous –
Gotta have this with the Nielsen Booster to run a suppressed handgun. Now my R9 works like it is supposed to. It’s a must have and it works.
Anonymous –
Installed and the firearm runs flawlessly.
Anonymous –
Flawless. Great service on helping me with my purchase.