From all my tinkering and mods done to my 3 KRAL NP-O3s I have some left over barrels. The KRAL barrels are 16 inches long. I replaced them with the AKELA, KRATOS longer 19 inch barrels in those builds. Almost direct fit except where barrel goes into breech it has a shoulder that needs to be turned down a little to fit all the way into breech. On my NOTOS the .25 KRAL barrel needed about 3/16 turned to get barrel all the way into breech. Easy to do. Waiting on my bottle and .25 mags to test it out. Also made carbon fiber shrouds with crossman NP TRAIL baffle installed. Images to follow once completed.
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