• Thread your unthreaded Ruger Mark II, III, or IV bull barrels to 1/2-28 RH with this premium grade thread adapter
  • The adapter has a premium stainless steel construction with outer threads of 1/2-28 RH and an inner diameter of .884”

Ruger Mark 2/3/4 Bull To 1/2-28 RH Thread Adapter - Black Oxidized Steel Construction, Included 1/4” Brass Set Screws

$39.99

In Stock - Ships Today!

Fast and Accurate Order Processing

We offer standard, 3 day express, 2 day express, and overnight express shipping options for your convenience. If you place your order Monday - Friday by 2:00 PM EST using one of our express shipping options, your order will be processed and shipped the same day it is placed!

Applies to delivery within the 48 contiguous states only.
Shopper Award

  • Thread your unthreaded Ruger Mark II, III, or IV bull barrels to 1/2-28 RH with this premium grade thread adapter
  • The adapter has a premium stainless steel construction with outer threads of 1/2-28 RH and an inner diameter of .884”
  • The front sight width is .379” and included in the package are 20 Allen type 1/4” brass set screws


Thread your unthreaded Ruger Mark II, III, or IV bull barrels to 1/2-28 RH with this premium grade thread adapter. Made out of black oxidized steel, simply slip this adapter over the end of your barrel, tighten the brass set screws, and that’s it! Now, you can mount standard 1/2-28 RH threaded fittings on the end of your unthreaded barrel with ease.

52 IP5978


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Ruger Mark 2/3/4 Bull To 1/2-28 RH Thread Adapter - Black Oxidized Steel Construction, Included 1/4” Brass Set Screws
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