Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel)

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  • Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel)
  • Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel)
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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! 


Inner Diameter: .884 inches

Front Sight Width: .379 inches

Outer Threads: 1/2"-28 RH

Material: Black Oxidized Steel

Set Screws: 1/4"-20 Brass (Allen Type)

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Warranty Information

Lifetime Warranty
We are confident in the quality of our products and our stellar customer support, which is why most of our products are backed with an unconditional Lifetime Warranty. We guarantee ALL of our products against defects in materials or workmanship for the life of the product. We will repair or replace defective products free of charge. You need only ship the defective item back to us with a description of the issue, and our fast-acting service team will solve the problem or replace your product to ensure that you are 100% satisfied – NO MATTER WHAT!

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Additional Information

Black Steel
External Threads:
1/2-28 RH
# of Set Screws:
Gun Type:
Ruger Mark 2 Bull Barrel
Caliber Size:
.22 LR
Gun Type:
Ruger Mark 3 Bull Barrel
Gun Type:
Ruger Mark 4 Bull Barrel
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