Browning BLR 308/243 clamp-on muzzle thread and break adaptor

[Anglorussian]

This is the Witt Machine clamp on thread adapter (5/8 × 24) which eliminates the need to have your gun threaded and re-proofed.
These are not available in the UK and I had to have it sent to a USA address and get my sister to bring it over in person.
This will fit the barrel profile of a 308 and 243 lightweight tracker version of the Browning BLR with 18.5 inch barrel. (not sure about other calibres)
This clamp on system is tremendously strong and does not come off, and works well with light forward mounted moderators such as aimsport triton.
Will part with this item for £100

Also have a 5/8×24 sound forwarding muzzle break - this is ostensibly from that 'Gunbloke' chap in Australia however am pretty sure he just drop ships them from witt machine. £60 for this unit.

[Anglorussian]

A bit more on the dimensions:-

Check the diameter of your barrel with callipers at the muzzle and 1.625 inches behind. If you are getting approximately .579 and .595 inches respectively then you are good to go with whatever gun you have.