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PWS .578x28 Piston

Best price

$76.95at OpticsPlanet

In stock Sale checked Nov 14, 2026

Buy at OpticsPlanet

Compare 5 stores

Fits and works with

Caliber
.45 ACP · Shop matching ammo
Muzzle thread
.578x28 · Muzzle devices

Specifications

Manufacturer
Primary Weapons Systems

Compatibility

Caliber
.45 ACP

Materials and features

Color
Black
Material
Steel

Where to buy

StorePriceAvailabilityBuyAdd to build
OpticsPlanet Best price $76.95Salechecked Nov 14, 2026 In stock Buy at OpticsPlanet
MidwayUSA $76.95checked Nov 14, 2026 In stock Buy at MidwayUSA
AR15Discounts 5% off $76.95checked Nov 14, 2026 Check store Buy at AR15Discounts
Dirty Bird $76.95checked Nov 14, 2026 Check store Buy at Dirty Bird
Palmetto State Armory $76.99checked Nov 10, 2026 Check store Buy at Palmetto State Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $76.95 at MidwayUSA. Dashed line = out of stock. Tracking since Nov 12, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$76.95$76.95$76.95
Dirty Bird$76.95$76.95$76.95
MidwayUSA$76.95$76.95$76.95
OpticsPlanet$76.95$76.95$76.95

Since Nov 12, 2026.

About this part

The PWS .578x28 Piston is a .45 ACP suppressor from Primary Weapons Systems. It's sold by 5 stores (2 in stock), from $76.95 to $76.99. The lowest in-stock price in the last 30 days was $76.95 at MidwayUSA.

From the manufacturer

Upgrade your suppressor setup with the reliable PWS .578x28 Piston, engineered for seamless compatibility and exceptional performance in tactical firearms. Crafted by Primary Weapons Systems, this precision component ensures a secure, direct-thread attachment for your .45 ACP hosts, reducing gas blowback and enhancing shooting comfort during extended sessions. Key Features Premium Material Construction: Made from durable 17-4 stainless steel, heat-treated for superior strength and resistance to wear, ensuring long-lasting performance even under high-round counts. Versatile Thread Pattern: Designed specifically for .578x28 threads, ideal for AR-15 pistols, 1911s, and other .45 caliber platforms, providing a rock-solid mount for suppressors. Anodized Black Finish: Corrosion-resistant coating that withstands harsh environments, maintaining a sleek, professional appearance on your firearm. Broad Compatibility: Works effortlessly with leading suppressor brands like Rugged, SilencerCo, and Griffin Armament, offering flexibility for your NFA collection without needing multiple pistons. Technical Specifications Thread Size: .578x28 RH Material: 17-4 Stainless Steel Finish: Anodized Black Weight: 1.4 oz Dimensions: Length: 2 inches; Diameter: 0.75 inches Compatibility: Suppressors with .578x28 piston mounts Why Choose the PWS .578x28 Piston? This piston addresses common challenges in suppressor use, such as inconsistent mounting and premature wear from gas exposure. By delivering a precise fit and robust build, it minimizes carbon buildup and recoil, allowing for cleaner operation and quicker target reacquisition. Firearms enthusiasts trust PWS for innovative designs that prioritize reliability, making this piston a must-have for optimizing your suppressed shooting experience without compromising on quality or safety. Don't settle for subpar components-equip your setup with the PWS .578x28 Piston today and elevate your tactical performance to new heights.

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