YHM Nielsen Booster Assembly

YHM NIELSEN BOOSTER ASSEMBLY 

The YHM Nielsen Booster Assembly (YHM-2055) replaces the direct thread adapter on any suppressor with 1.375x24 (HUB) threading. It allows tilting-barrel semi-auto handguns to cycle reliably when suppressed. Without a booster, the added weight of a suppressor on a tilting-barrel pistol can prevent the slide from cycling. The spring-loaded Nielsen device decouples the suppressor's mass from the barrel during recoil, letting the action function normally.

The housing is machined from 17-4 PH stainless steel with a black oxide finish. It threads into the suppressor's rear mount socket and accepts a separate piston (sold separately) that threads onto the host firearm's barrel. This setup lets you swap pistons to run the same suppressor on different handguns with different thread pitches.

While designed for the YHM R9 and Nitro N20, the booster works with any suppressor that uses 1.375x24 (HUB) threading, including models from SilencerCo, Dead Air, Energetic Armament, and others. It's also a common choice for Form 1 suppressor builds.

Note: This assembly does not include a piston. A piston must be purchased separately in the thread pitch that matches your host firearm's barrel. This assembly is not compatible with YHM Sidewinder pistons.

FEATURES

• Allows tilting-barrel handguns to cycle reliably when suppressed
• Replaces any 1.375x24 (HUB) direct thread adapter or mount
• Accepts pistons from YHM, SilencerCo, Rugged, and Dead Air Odessa
• Swap pistons to run different handguns with different barrel threads
• Does not include piston (sold separately)
• Not compatible with YHM Sidewinder pistons

SPECIFICATIONS

• Model: YHM-2055
• UPC: 841812101215
• Thread Pitch: 1.375x24 (HUB)
• Weight: 3.2 oz
• Length: 1.875"
• Diameter: 1.563"
• Material: 17-4 PH Stainless Steel
• Finish: Black Oxide
• Manufacturer: Yankee Hill Machine

COMPATIBLE PISTONS

• YHM (YHM-2060 series)
• SilencerCo
• Rugged
• Dead Air Odessa

COMPATIBLE SUPPRESSORS

• YHM R9
• YHM Nitro N20
• SilencerCo Hybrid 46 DTM
• SilencerCo Omega 300
• Dead Air Nomad-30
• Dead Air Nomad-Ti
• Dead Air Primal
• Any suppressor with 1.375x24 (HUB) threading, including Form 1 builds