HK Army Performance Series Regulator Piston -
- Free Shipping on orders over $49.99
- In stock, ready to ship
- Backordered, shipping soon
Upgrade your HK Army Performance Series Regulator with these pistons. These pistons come equipped with Belleville Shim Stack, designed for precision and ease of use. This innovative component allows you to adjust the output pressure of your regulator quickly and efficiently without needing to purchase an entirely new regulator unit. Simply pull out the entire shim stack unit and drop it into your regulator for seamless performance.
The shim stack wraps around a robust brass piston equipped with all necessary O-rings, ensuring a leak-free experience. This piston stack is also an excellent solution for those dealing with a worn-out piston system that no longer provides consistent output pressure.
Features:
- Lower Pressure Output: This piston shim stack is preset to make the regulator output pressure 250-300psi.
- Mid Pressure Output: This piston shim stack is preset to make the regulator output pressure 450-550psi.
- High Pressure Output: This piston shim stack is preset to make the regulator output pressure 800-850psi.
- Belleville Shim Stack: Belleville Shims (or disc springs) can provide a significant amount of force in a compact space. This compactness allows for a more streamlined and lightweight design compared to traditional coil springs.
- Quick and Efficient Swap: The entire shim stack unit can be quickly pulled out and replaced.
- Brass Piston: Durable construction with necessary O-rings for leak-free performance.
- Consistent Output Pressure: Ideal for replacing worn-out piston systems to restore regulator performance.
- Compatibility: Specifically designed for HK Army Performance Series Regulators.
Caution: Ensure the air system is completely degassed before making any updates to the regulator to avoid injury or damage.
- Same-Day Shipping Cutoff: Orders placed before 3:00 PM PST on our regular shipping days (Tuesday, Thursday, Friday, and Saturday) typically ship out the same day.
- Business Days & Closures: Please note that we are closed on Monday, Wednesday, and Sunday. Orders placed after the daily cutoff, on holidays, or on closed days will ship on the next available business day.
- Pre-Orders: Items marked as pre-orders will ship as soon as they become available.
- Free Shipping: We offer free ground shipping within the United States on all orders of $50.00 or more. USPS Priority shipping options are also available for an additional fee at checkout.
- International Shipping: International shipping is not available at this time.
Upgraded Shipping & Transit Times
When paying for upgraded shipping, delivery times are quoted in business days (Tuesday, Thursday, Friday, Saturday) starting from the date the package actually ships—not the date the order was placed.
- Transit times quoted during checkout are estimates and are not a guarantee of service.
- We cannot offer refunds on upgraded shipping fees due to carrier delays or miscalculated transit times.
- Once a package leaves our facility, we are not responsible for carrier delays. We are always here to help, but please keep in mind: we are not the post office!
Lost, Stolen, or Damaged Packages
If a package is lost, stolen, or damaged during transit, you must report the issue to us immediately so we can file an official investigation and claim with the shipping company.
- We must wait for a definitive answer or resolution from the shipping carrier before we can send out a replacement product or issue a refund.
- We understand this can be frustrating and will work as quickly as possible with the carrier to resolve the matter for you!
