One cannot install a new and longer barrel in free floating manner to try to get some accuracy.
You can order a replacement barrel in the same length as your original R5M..assuming it's a Standard length. Or you can order a long barrel...and you might need to buy or make the spacer needed for the installation.
Changing a barrel takes all of 5 minutes. There's a YouTube video.
And no the R5M barrel is not free-floating, it has a tensioned system. You can change the barrel tension..a certain tension might give you better accuracy. It's tightening or loosening a barrel nut. It may be too tight or too loose.
Pay close attention to the tension of your barrel , some say between 10 & 12 ft. pds. if I recall , also the barrel can be swapped by mistake (end to end) the choke . As you know do not let the shrould touch the air tube .BTW a R5M IMO is not going to compare to any FX at any longer distance , even my crickets out shoots it .
Upvote 0