Charlie/Saker BPISTIN Booster Assembly

$165.00

"Charlie/Saker BPISTIN Booster Assembly" added to wishlist
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Description

These booster assemblies install in your Charlie/Saker pattern 36M or 46M suppressor to allow the use of BPISTIN pattern booster pistons, which includes:

-All ECCO Machine booster pistons

-All SilencerCo booster pistons

-All Kaw Valley Precision booster pistons

-Rugged Obsidian 9 & 45 booster pistons

-Dead Air Odessa booster pistons

-OSS Rad 9 & 45 booster pistons

-Current YHM booster assembly  pistons

-Griffin Cam Lok or EZ Lok pistons for SilencerCo/Rugged pattern

They are also female threaded for 1.125-28 Alpha pattern mounts & adapters, including Griffin Cam Lok 1.125-28 Direct Thread adapter, Griffin Plan A Alpha, SilencerCo AC2447 & AC2448 3 lug adapters, SilencerCo ASR Alpha, SilencerCo (Alpha) Harvester 300 Direct thread adapters, Q Plan B Alpha and others.

 

The housings and nuts are made from 17-4 H900 stainless steel, the retainer caps are 6Al-4V Gr. 5 titanium.

 

Charlie/Saker booster specs:

Overall length w/cap: 1.85″

Booster nut thickness: .5″

Retainer cap protrusion behind Booster Nut: .13″

Booster nut diameter: 1.5″

Body diameter: 1.08″

Thread tenon length: .43″

Distance from flange shoulder to front of booster: 1.32″

Assembly weight W/O Piston: 3.2 ounces

 

Piston shank protrusion behind cap (all boosters): 1/4″ with standard 2″ long piston.

*Please note, the piston retainer must be removed before the Charlie nut can be removed from or installed over the booster housing tail.  These also ship with a silicon band that prevents the nut from moving about on the housing tail in transit and scratching it; that band is meant to be discarded*

 

In Stock Natural products ship within 1-2 business days. While we usually have SOCOM Black on hand to ship within 1-2 business days, color selections may add up to 10 business days to ship time.

Before placing your order, please reference the provided dimensions and compare with your application to ensure this product fits so as to avoid return shipping and restocking costs.

 

These assemblies include booster housing, booster nut, piston retainer with O-ring, spring and a polymer wrench. They DO NOT include a piston.

 

 

Additional information

Moly Resin

Foliage Green, Light Grey Flat, Natural 17-4 H900, Burnt Bronze, Coyote Brown, Tan FDE, SOCOM Black, Grey-Black Colt Flat, OD Green, Flat Brown

2 responses to “Charlie/Saker BPISTIN Booster Assembly”

    Randall Dreiling
    July 4, 2025
    ECCO Machine has saved my SilencerCo 46M from being a paperweight . ECCO has been very responsive and provided excellent products! Thanks ECCO! ...I've put your info out to many SilencerCo owners that have been unable to get parts from them. I hope your company thrives from SilencerCo's failures. I'm sure I will be buying more, so please keep up the excellent work!! I started searching for other options than SilencerCo products, and that's when I found ECCO Machine. I was unable to get SilencerCo Charlie products...they seem to be sold out always, and when they do release a batch like the Charlie Piston Mount. It's sold out in about 10 to 15 minutes of their email notification. A couple of days later they are on Ebay for $350 to $560. I have 2 of ECCO products in hand and just ordered the third one. In hand products: 1.375-24 Bravo (HUB, “ASR”) 3/4″ Extension, and Charlie (Saker) to 1.375-24 Bravo Adapter, and they work awesome! Ordered product: Charlie/Saker BPISTIN Booster Assembly. I tried for 4 months to get SilencerCo Charlie Piston Mount at the market price with no luck and the response from SilencerCo was BS! I will never own another SilencerCo product. 7/4/2025 I received my Charlie/Saker BPISTIN Booster Assembly earlier this week and it fits perfectly.
    Pieter Quackenbush
    July 1, 2025
    I couldn't find a SilencerCo Charlie Piston Mount anywhere then stumbled across ECCO Machine and they had them in stock and shipped fast. My friend has a SilencerCo Charlie Piston Mount and after comparing the two we both agree the ECCO seems like the more solid product.

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Charlie/Saker BPISTIN Booster Assembly
Charlie/Saker BPISTIN Booster Assembly
$165.00
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