has anyone ever made a carbine

from a HW90?

how would one go about shortening the barrel, installing an LDC and still be able to cock it with reasonable effort?

they have a 19" barrel and, at best, cocking effort is obscene so LDC would have to be firmly attached after shortening barrel.

Click to expand...

You can buy a BRL008 Carbine Barrel .22 - HW90K With 1/2" UNF thread from TW Chambers & Co. Don't see a listing for .177 but you could email for info. I ordered a carbine UNF threaded barrel for my HW35 from then, best improvement I could have made to that gun.

I’ve shortened a few barrels with simple hand tools (tubing cutters/hacksaw).

Recrowned with a cordless drill and chamfering/polishing bits. There’s a slew of info online. A firmly mounted muzzle-brake gives u a grab-point for better leverage.

Maybe I’ve been lucky, but ain’t scrapped a barrel yet.

Even a sharpened pencil with the tip slathered in lapping compound helps to polish the crown. Also a copper jacketed .30 cal lead slug...

Lotta ways to skin that cat

I made this carbine by cutting 4.5 inches off of my Diana 45 (newer version with diana34 action) and adding a muzzle break. I also added the 12 footpound vortek kit to ease cocking. These four 5 shot groups were shot this morning at 25 yards, front bag rested at Ballance point. Couple dime size groups. One nickel and one quarter sized groups. Not bad but more pellet fussy than before the chop. Did the brass screw crown mod.

Years ago many used the Apex M/B for carbine springers.

https://www.airrifleheadquarters.com/catalog/item/1205004/692734.htm

Look good work well and stand the test of time. You will be ready for some surgery to repair something before the Apex would let you down.



John