The Umarex X-Tender is used to easily accommodate universal accessories with three additional Picatinny rails and M-LOK slots along the X-Tender.

An additional muzzle thread (M17) with knurled nut allows the optional X-Tracer silencer (2.4050) to be fitted.

The robust polymer construction attaches very quickly and easily to the HDR 50 's lower Picatinny rail .

Also included is a stylish muzzle brake for the HDR 50, which gives the revolver an even more imposing appearance .

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Basically, this is a utility to affix onto your HDR50 / TR50. Is it a barrel extender? No. It will not increase muzzle velocity or improve accuracy. Does it offer you a UMAREX-grade option to add all kinds of M-LOK and PICATINNY accessories onto your HDR50? Yes. 

Can you make a gas-tight seal and create an elongated barrel, which fits through this X-TENDER? Yes. Can you make an M17x1 threaded silencer and fit it onto the threaded end? Definitely. 

We recommend looking at the latter two options, then extending the pre-fill chamber to a larger volume to get bbetter utility from the additional barrel length. Chuck a foregrip on, sound moderator, offset M-LOK mounted flashlight, then you have a stockless, long barrel six shooter.

This modification takes up to about five minutes to install. No technical expertise required to set it up.

Technical specifications