Benjamin Did i miss the bubble? Marauder bottle guns

Two of the rifles in the picture I posted have the JSAR aluminum tube (two lower) and two (the upper two) have a AGR hybrid tube. The black side lever is mostly JSAR parts. AGR makes a hybrid tube that retains the steel aft section but has an aluminum forward section. The JSAR is factory dimensions including the ID so it can be regulated. The AGR part has a thicker sidewall and cannot take a regulator. Both knock weight off and improve balance.

The advantage of the hybrid tubes is that a conventional hammer can be used. The all aluminum JSAR tube must use a Delrin or plastic hammer. Both are wonderful.
Man I have been here a few days, and I appreciate how freely information moves. I hadn't heard of the hybrid tube from AGR yet, but since I want to add a regulator I guess JSAR is the winner today.
 
I will chime in to also say that the JSAR aluminum air tube completely changes the feel of the gun. Especially when paired with the lighter synthetic stock. A superbly balanced off-hand hunting rifle.
Did you use the oe synthetic marauder stock? I like the minimalistic "AR grip and adj stock" look if I could find one.
 
The plain synthetic stock of the Syn-Rod coupled with the JSAR aluminum tube and a short shroud to reduce the length and improve forward balance and maneuverability makes for an awesome hunting weapon. This rifle has the JSAR tube, Huma reg, Cobra type valve, AGR lightweight hammer SSG, shortened shroud, AGR thumb rest to improve cocking ease. I did the Veil camo hydro-dip and shot over with a matte 2K clear myself. It is a .25 M-Rod, 39.5 inches OAL.



Reducing the shroud length removes some of the baffles but the rifle is not that much louder than the OE length. I sometimes use the DFL Tanto if worried about noise scaring the varmints.