i opened the gun , looked surveyed etc.. I have the simpleslt solution possible ,... id almost prefer not to share on here but i will.Open your MIND here.. Right before the slot starts where it says "add oil here" on the comp tube.. Cut the friggen metal tube and rotate it.. After that , slide a perfectly fitting piice of metal tube over where you cut after deburring and making the mating sufaace perfect.YOU SIR are done , its now a sidepumper , with no internal mods needed, compression doesnt start till after this point of the tube anyway , any with epoxy insdide the new outer collar, it wouldnt matter if it did.Your probabaly thinking "how is the outer tube gonna clear the barrel ,that really a simple issue in the bigger picture, some grinding and shimming will make all that a moot point.