Gemtech GT34581 GM-45/Blackside Piston for HK USP .45
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Gemtech GT34581 GM-45/Blackside piston is a silencer piston accessory (Silencer Pistons, Silencers) listed to fit HK USP .45 pistols and sold as a single unit (Package Qty: 1). SKU GT34581.
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Description
Description
Product Overview
Gemtech GT34581 GM-45/Blackside Piston is categorized under Silencer Pistons and Silencers. Source facts identify Gemtech as manufacturer, indicate this piston is the GM-45/Blackside piston and list “Fits HK USP 45 Pistols” as an attribute. Package Qty is 1 and SKU is GT34581.
Why This Product
The key purchase facts are the piston designation (GM-45/Blackside), the stated fitment to HK USP 45 pistols, and the single-unit packaging. These facts are relevant for buyers matching piston components to HK USP .45 host pistols and for single-item procurement.
Key Verified Specifications
- Brand / Manufacturer: Gemtech (source: f002, f006, f007)
- Model / SKU: GT34581 (source: f013)
- Product categories: Accessory; Silencer Pistons; Silencers (source: f003, f004, f005)
- Package Qty: 1 (source: f008, f011)
- Notable attributes: GM-45/Blackside Piston (ADDITIONALFEATURE1); “Fits HK USP 45 Pistols” (ADDITIONALFEATURE2) (source: f009, f010)
- Availability: instock (source: f014)
Appropriate Use Cases
- Ordering a replacement piston for a Gemtech silencer intended for use with an HK USP .45 pistol where the GM-45 piston is specified (source: f009, f010).
- Service or repair operations purchasing single pistons to maintain a small number of host pistols (source: f008).
What Customers Should Know
- Source facts state this piston “Fits HK USP 45 Pistols”—confirm fitment to your specific host pistol variant before ordering (source: f010).
- Package Qty is one piston per listing—order quantity accordingly (source: f008, f011).
- SKU GT34581 should be verified on purchase and fulfillment documents (source: f013).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

