Modern telescopic stock UBR from Magpul PTS for AEG
Colt M16/M4 or Armalite M15. Thoughtful design tactical stock made from solid polymer with the original system of sliding (length can be set from 20 to 29 cm). The stock has rubber flab, openable box for trifles and place for mounting QD sling swivel. This stock offers individual length in seven positions, but of course is stable like fixed stock.