This product contains 1 knurled thread protectors.

Compression spring to be used ONLY with Xcaliber Firearms Pistol Silencers.

This compression spring can be purchased as a replacement for either SeaFire Diamond or X-series suppressors.

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

A SeaFire Diamond Fixed Barrel Mount is needed when using a pistol silencer on a fixed barrel firearm. The mount provides a more solid connection when attaching a silencer to a firearm. It prevents premature wear and tear on the springs, pistons, and boosters of a silencer when used on a fixed barrel.

Compatible with all SeaFire Diamond and X-Series Silencers form Xcaliber Firearms

The Xcaliber Firearms Kel-Tec KSG Thread Mount allows you to mount your Xcaliber Firearms SS1C suppressor to your Kel-Tec KSG.

This SeaFire Diamond HK 3 Lug Cap Assembly Mount, will replace your existing SeaFire Diamond Nielsen Device and will function with most HK 3 Lug Hosts.

This X-Series HD HK 3 Lug Cap Assembly Mount, will replace your existing X9 or X45 Nielsen Device and will function with most HK 3 Lug Hosts.

Xcaliber Firearms is introducing our NEW Eco Lite-22 silencer. The Eco Lite-22 is the newest to join our 22 caliber line and is composed of mostly aluminum components, making this silencer the lightest in our line. With our Eco silencer line, there is virtually NO first round pop!

The Xcaliber Firearms Eco-22 silencer is the best Rimfire silecner for sound reduction. This silencer offers virtually NO first round pop! The Eco-22 silencer makes for a fantastic first-time silencer and even the most avid collector will be impressed with the quality and sound suppresion.

The Xcaliber Firearms Genesis Micro AL silencer offers the best sound reduction for the best price in the entire industry and is loaded with features that you will love. This silencer is completely made from aluminium making the Genesis Micro AL a fantastic lightweight 22 suppressor.

The Xcaliber Firearms Genesis Micro SS silencer is made from high-quality durable stainless steel that offers a great sound reduction in a small compact capacity. The silencer design and structure provides the best quality sound reduction on .22 host firearms and even 22 magnum hosts. Small and compact, the Genesis Micro SS is a fantastic choice for 22 pistols.

The Xcaliber Firearms Genesis Micro TI silencer offers the best sound reduction for the best price in the entire industry and is loaded with features that you will love. This silencer is completely made from titanium making the Genesis Micro TI a fantastic multi-rated and is lightweight silencer.

The Xcaliber Firearms Genesis TI is the most versatile 22 silencer on the market and is loaded with features that you will appreciate. With virtually no first round pop, you will love it from the first round to the last. The Xcaliber Firearms Genesis TI is made entirely of Titanium thus making this silencer a great light-weight option for 22's. This silencer is multi-rated and matches great with .223 and 25acp.

The Xcaliber Firearms SeaFire Diamond 9 silencer is loaded with features that you will love. Our SeaFire Diamond 9mm is compatible with ALL of our SeaFire Diamond accessories that allow you to get the most out of your suppressor. Using the dropdown menu below you can select from our standard pistons. Made from high-quality durable materials and designed for optimal convenience for easy disassembly and cleaning. This suppressor makes an excellent submachine gun silencer too!

The Xcaliber Firearms SeaFire Diamond collection offers amazing silencers that are loaded with features that you will love. Our SeaFire Diamond 45ACP is no exception and is compatible with ALL of our SeaFire Diamond accessories that allow you to get the most out of your suppressor. The Seafire Diamond 45ACP comes with an adjustable booster for POI shift and is full-auto rated.

The Xcaliber Firearms Mountaineer-D Silencer is a fantastic centerfire rifle suppressor. The Mountaineer-D offers an exceptional sound reduction on 30 caliber hosts and is multi rated for smaller calibers, 308 and 300 blackout hosts. The Mountaineer-D is designed with the user in mind and comes apart easily for cleaning with no required takedown tools needed. The front and rear end caps are designed with standard wrench flats.

This suppressor platform mounts to any standard modern shotgun with threaded chokes. The SS1C is also rated for 20 gauge! This is the world’s first “Multi-Gauge Rated Shotgun Silencer.” The convenient design allows the silencer comes apart for cleaning. Also, we include a front sight plate that indexes to any position you want. This allows you to use a traditional bead sight for shooting. Patent-pending baffle system.

The Xcaliber Firearms Mountaineer TI Silencer is a light-weight, durable, multi-rated 30 caliber silencer. This multi-caliber rated silencer offers world-class sound reduction at an affordable price and is rated for limited full auto fire! The Mountaineer TI offers users a new experience with the quality sound reduction on all rated platforms.

The Xcaliber Firearms X-Series specializes in high-quality MULTI-RATED silencers that are loaded with features that you will love. The X9 is no exception and is compatible with ALL of our SeaFire accessories that allow you to get the most out of your suppressor. The X9 comes with an adjustable booster for POI shift.

The Xcaliber Firearms X-Series offers amazing silencers that are loaded with features that you will love. The X45 is no exception and is compatible with ALL of our SeaFire accessories that allow you to get the most out of your suppressor. The X45 comes with an adjustable booster for the POI shift and is full-auto rated.