A Easy Cocking Help for the Predom Lucznik Pistol


A number of years in the past, Nick made a cocking deal with for his Predom air pistol.  I needed to make one thing for mine, however different initiatives have been taking priority on the time and it was merely forgotten. Capturing my Predom a couple of nights in the past introduced the mission again to reminiscence and to the highest of the mission que.

Some inspection of the pistol revealed that the muzzle was deeply recessed–over two inches–and the barrel was counterbored to about 0.265″ in diameter. 

I discovered a 1-3/8″ diameter aluminum ball for a machine deal with within the McMaster–Carr catalog.   

 The ball and a 2″ lengthy 5/16″ shoulder bolt accomplished the components record.

The ball and bolt each have 1/4-20 threads. 

Lower the pinnacle off the bolt…

And turned down the 5/16″ diameter to about 0.262″ to suit into the tip of the counterbore.

Did it in sections–keeping the overhand to a minimum–then polished it with a bit of maroon scotchbrite.


Head blued the shaft, then threaded it to the ball with some medium energy Loctite.

Low-cost, fast and no extra hand ache.

Extra quickly…


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