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Questions & Answers
Will this work on a .223/5.56 barrel with 1/2x28 threads? Expert Answer

Yes, the SilencerCo Delta 1/2x28 Adapter is a 1/2 X 28 to 1/2 X 28 O-RING Engagement Adapter that shortens .6″ 1/2×28 threads to .4″.

by Ethan, Gear Expert, September 18, 2023
Do you offer one that would slide onto a glock 19 gen 3 barrel? 9mm. Also do you offer one that would slide on a glock 23 gen 3 barrel? .40S&W 9/16x24 Expert Answer

We do not have a SilencerCo Delta 1/2x28 Adapter or an adapter that would slide onto a Glock 19 or Glock 23 barrel. The barrels at the link below are threaded and will work with those model Glocks.
https://www.opticsplanet.com/silencerco-sco-threaded-barrel-for-glock-17-9mm-5-inch-barrel-5x28-threads-black.html?_iv_caliber-193146313=9mm-luger&_iv_gun-model=glock-19,glock-23

by Hunter, Gear Expert, July 27, 2023
Customer Reviews
Most Recent Reviews
perfect fit by alex, Verified Owner, March 8, 2026
Does exactly what it should - and it’s made of high quality material. Does not add a significant amount to the length either
Read 1 Review

14% OFF Firearm Parts + 2% Bucks in the App

GNAPPClick to Copy Coupon Code
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Expires in 12 hours. Cannot be combined with other promotions or offers.
Color:
Black
Condition:
New

Code: 1UL-MD1-JHBV-AC3

MPN: AC3

UPC: 817272010039

List: $44.00Save $2.01
$41.99

Product Info for SilencerCo Delta 1/2x28 Adapter

Get your 22 suppressor-ready in a few seconds with a Delta Adapter. Available in multiple models, enjoy the benefits of o-ring engagement which keep the muzzle threads clean and prevent your suppressor from working loose under firing.image

Models:

  • 1/2 X 28 TO 1/2 X 28 O-RING ENGAGEMENT ADAPTER (AC3)
  • 1/2 X 20 TO 1/2 X 28 (AC115)

Specifications for SilencerCo Delta 1/2x28 Adapter:

Manufacturer: SilencerCo
Fabric/Material: Steel
Color: Black
Condition: New

Package Contents:

  • SilencerCo Delta 1/2x28 Adapter

SilencerCo Delta 1/2x28 Adapter Orderable Models

List of Orderable Models

  • SilencerCo Delta Adapter, 1/2x28, Black, AC3 , MPN: AC3 , UPC: 817272010039 , Code: 1UL-MD1-JHBV-AC3

SilencerCo Delta 1/2x28 Adapter Unavailable & Discontinued Models

List of Unorderable Models

  • SilencerCo Rimfire Supressor Adaptor, 1/2x20 to 1/2x28, Stainless, AC115 , MPN: AC115 , UPC: 817272011593 , Code: 1UL-MD1-JHBV-AC115
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