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Running a suppressor on a .45 with a metric left-hand threaded barrel means you need the right piston, and this is the one Yankee Hill Machine built for the job. The Nielsen Piston in M16x1 LH is the thread pattern you'll find on hosts like the HK USP45 Tactical, and it pairs up with YHM's booster housing (the YHM-2055) as well as a long list of popular pistol suppressors that accept standard pistons. If your can already runs a Nielsen device, swapping this in is a quick way to move your suppressor between hosts without buying a whole new mount.
YHM machines these pistons from heat-treated 17-4 stainless steel, which is exactly what you want in a part that lives inside a booster assembly. It handles the heat, the carbon, and the constant cycling without wearing out early, and the stainless construction shrugs off corrosion even when cleaning day keeps getting pushed back. At just 1.4 ounces, it adds next to nothing to the front end of your pistol, which matters when you're trying to keep a boosted setup cycling reliably.
Anybody who has hung a can on a pistol knows point-of-impact shift is part of the deal. What sets the Nielsen Piston apart is its 10-point adjustment system, which lets you index the piston to walk your impact shift back toward your original zero. It's a small feature that makes a real difference when you care about hits landing where the sights say they should.
This piston works with the Sidewinder M2 but is not compatible with the original Sidewinder, so double check which generation you own before ordering. Beyond YHM's own lineup, it fits many industry-standard booster housings, making it a handy piece to keep in the range bag if you rotate one suppressor across multiple threaded pistols. For .45 cal hosts wearing M16x1 LH threads, this is the piston that ties the whole setup together.
It's designed for YHM's booster housing, the YHM-2055, and it also fits many popular pistol suppressors that use industry-standard pistons. One thing to note: it works with the Sidewinder M2 but not the original Sidewinder, so verify which version you have before picking one up.
M16x1 left-hand is a metric thread pattern most commonly found on HK .45 caliber hosts like the USP45 Tactical. If your threaded barrel is marked M16x1 LH, this is the piston that matches. Always confirm your barrel's thread pitch before ordering, since metric and standard patterns are not interchangeable.
The piston can be indexed to ten different positions within the booster assembly, which lets you rotate it to counteract point-of-impact shift after mounting your suppressor. You adjust, shoot a group, and repeat until your rounds land back where your sights are zeroed. It's a practical feature for anyone who wants a suppressed pistol that still hits precisely.
A piston takes constant abuse from heat, carbon fouling, and the back-and-forth cycling of the booster assembly. Heat-treated 17-4 stainless holds up to all of that while resisting corrosion, so the piston keeps running smoothly over a long service life. It's a proven choice for parts that live in a dirty, high-stress environment.
| UPC | 841812101604 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | YHM-2062-ML |
| Color | Silver |
| Length | 5.5500 |
| Model | |
| Product Type | Piston |
| Shipping Weight | 0.105 |
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