Memorial Day Sale! 10% off all in stock items, including suppressors! Discount valid from 12:01 am MST Saturday 25 May through Monday 27 May 2024 at 11:59 pm MST! Auto-applies in checkout.

(Dealer accounts: regular tiered dealer pricing still applies with no additional discounts)
Memorial Day Sale! 10% off all in stock items, including suppressors! Discount valid from 12:01 am MST Saturday 25 May through Monday 27 May 2024 at 11:59 pm MST! Auto-applies in checkout.

(Dealer accounts: regular tiered dealer pricing still applies with no additional discounts)

OEM Replacement Booster Assemblies, BPISTIN Alpha pattern

$140.00$165.00

Clear

Description

These booster assemblies install in your 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 Alpha pattern accessories, 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 are made from 17-4 H900 stainless steel, the retainer caps are 6Al-4V Gr. 5 titanium. Piston weights vary, but total weight with piston & spring installed will be ~3.3-3.8 ounces (D-Cell assembly is 4.5-4.8, depending on piston).

 

The AAC TiRant and Surefire Ryder 9 Alpha booster assemblies require the suppressor to be sent in for the retrofit due to the OEM booster housing being a silencer part. The original housing cannot be returned and must be destroyed. Price shown includes the retrofit service, shipping is additional.   Alternately, we can ship a TiRant or Ryder 9 booster assembly to your local SOT or gunsmith for $140 to handle the replacement for you locally if you do not wish to ship your silencer.  Contact us if you would like to upgrade your TiRant or Ryder 9 booster.

 

These assemblies include booster housing, retainer with O-ring, and spring. They DO NOT include a piston, but you can add a piston in the drop down here: https://www.eccomachine.net/product/booster-pistons/

 

Though we sometimes have SOCOM black assemblies on hand, expect color options to add 5-10 business days to ship time.

These assemblies include booster housing, retainer with O-ring, and spring. They DO NOT include a piston, but you can add a piston in the drop down here: https://www.eccomachine.net/product/booster-pistons/

Additional information

Booster Male Thread Size

1.125-28, 1.180-24, 1.1875-24, 1.375-24 Bravo, AAC TiRant (Contact Us- Service Req'd), D-Cell 1.4375-20, Gemtech GM45, SWR H.E.M.S. 2, Surefire Ryder 9 (Contact Us-Service Req'd)

Moly Resin

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

4 responses to “OEM Replacement Booster Assemblies, BPISTIN Alpha pattern”

    FC
    March 6, 2023
    Machining is beautiful and refinishing is pristine. Fitment is excellent. These are top notch folks to deal with. Had to contact them to make a minor change and was promptly replied to within 24 hrs with great communication. Lovely experience with ECCO. Will have no issues doing business with them in the future.
    Matt Stennett
    January 19, 2023
    Threads are buttery smooth. Surface finish is perfect. Product is beautiful and lightweight.
    Chris Aceto
    August 15, 2022
    Like the previous reviewer, I’m a hobby machinist, also like him I’m blown away at the quality. It’s absolutely amazing what a discriminating master machinist can produce. The personal attention I received about some questions I had as well as the timely manner, great packaging and gummi bears in the box (personal touch) made this an excellent experience. I’m looking forward to dealing with ECCO machine again
    tommy walton
    August 11, 2022
    I have purchased 3 booster assemblies from Ecco machine. As a novice machinist myself, I’m blown away by the quality of these parts. Fit and finish is more like artwork. All threads are perfect. Zero play. All edges are chamfered and deburred with laser precision. The spring and piston fit is amazing. I run these boosters on various 1911’s glocks, FNX and others. They function on them all, between them all flawlessly. Also these assemblies are very low profile. If you want a serious quAlity item, that’s a piece of art as well, look no further.

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OEM Replacement Booster Assemblies, BPISTIN Alpha pattern
OEM Replacement Booster Assemblies, BPISTIN Alpha pattern
$140.00$165.00
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