The YHM Nielsen Piston in .45 caliber with an M16x1 RH thread is a booster piston from Yankee Hill Machine (brand part no. YHM-2062-MR). YHM builds its Nielsen Pistons from heat-treated 17-4 stainless steel for durability and corrosion resistance, and each one offers 10 adjustment points to zero out impact shift. It is compatible with the YHM Booster Assembly, with YHM Sidewinder M2 suppressors and with many popular pistol suppressors. This version is the M16x1 RH (right-hand) thread. Check your host thread direction before ordering, because YHM sells the same piston in a left-hand version too.

Key Specifications

• The caliber is .45, the bore size this piston is built for.
• The thread is M16x1 RH, the right-hand version that has to match your host thread direction.
• The material is 17-4 stainless steel, known for strength and corrosion resistance.
• The piston is heat treated for maximum durability.
• It has 10 adjustment points to zero out any impact shift.
• The weight is 1.40 ounces, as listed by the maker.
• It is compatible with the YHM Booster Assembly.
• It also works with YHM Sidewinder M2 suppressors and many popular pistol suppressors.
• It is not compatible with the original Sidewinder, a limit worth confirming before you order.

Frequently Asked Questions

What does a Nielsen piston do? It is a booster piston used with the YHM Booster Assembly, Sidewinder M2 suppressors and many popular pistol suppressors, with 10 adjustment points to zero out impact shift.

Is this the right-hand or left-hand piston? This is the M16x1 right-hand (RH) version. YHM also sells the M16x1 left-hand (LH) piston under a different part number.

Does it fit the original Sidewinder? No. YHM states it works with Sidewinder M2 suppressors but not with the original Sidewinder.

Buy the YHM Nielsen Piston, .45 Cal, M16x1 RH Thread

Dial in your suppressed .45 with a genuine YHM booster piston in the right thread direction. Order it from our Yankee Hill Machine lineup, part of our suppressor parts and accessories selection, at our Lubbock, Texas gun shop for fast, direct shipping.