This nylon-polymer handguard set fits almost anywhere a carbine-length drop-in system is needed. It comes in two parts, and fits the KM4 Commando, CQR Series, KM4A1, and KM4 CQB. It also fits as a replacement set for the original PTS RM4 Series, but also fits on the new RM4A1. On the RM4 and KM4 diagrams, these parts will appear as 257 and 258.

Weight .20 lbs
Dimensions 7 × 4 × 4 in