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sleeved adapters

Sleeve and Frame Adapters

I provide these as an alternative to barrel threading which generally requires a minimum diameter of 15mm to give sufficient shoulder for adequate moderator base support. These adapters are precision bored to provide a nice sliding fit on the muzzle and are attached by grubscrew or Loctite. The latter, which allows a thinner wall design is semi-permanent and can be removed with a little heat.

Another type of adapter is shown in the miscellaneous section.

The selection below shows examples in brass, stainless steel, and polished mild steel before and after chemical blacking.

They all have a 1/2" X 20UNF male thread, for attachment of sound moderator. Some are shown with optional custom thread protector ring which I make in various styles to your specified design, with or without knurling or banding etc.

Please note I require an accurate barrel diameter and the calibre to be specified when ordering.

Gallery last updated 12th February 2012


A sleeved SS adapter for STEYR with air stripper attached
A sleeved stainless steel adapter for STEYR with air stripper
AA S200 adapter
AA S400 adapter 2
AA S400 adapter
AA S410
AAS400 with original sound moderator
AAS400 with sleeved adapter & above with new moderator
AAS410 and adapter
Adapter for Skan, with original end cap
Adapter for Skan complete, with original end cap
Air Arms MPR muzzle brake after modification for moderator attachment, showing UNF male and female thread
Air Arms MPR muzzle brake after modification for moderator attachment, showing UNF male thread
Air Arms MPR muzzle brake after modification for moderator attachment and refinishing
Air Arms MPR muzzle brake before and after modification for UNF moderator attachment, showing parts
Air Arms MPR muzzle brake showing moditication for moderator attachment after refinishing
Aluminium adapter for STEYR 110FT with  air stripper components and key
Aluminium adapter for STEYR with plain banded Thread Protector Ring
Aluminium sleeved adapter fancy TPR closeup (part of air stripper assembly)
Aluminium sleeved adapter with fancy TPR (part of air stripper assembly)
Aluminium Stealth UNF frame adapter, 2 piece round end type
Aluminium Stealth UNF frame adapter, 2 piece square end type-
Aluminium Stealth UNF frame adapter, 3 piece type
Aluminium Stealth UNF frame adapter (flush type) and large Delrin TPR assembled

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