The KWA LM4 PTR Series outer barrels are a major component of KWA’s legendary LM4 Series, and showcase the quality that KWA is famous for. Click the picture to see the reference guide for outer barrels, then select your barrel section from the drop down.

#556-7: The updated one-piece barrel for the LM4C. You can also create a complete LM4C outer barrel from parts #43 and #299-2.

#43: This rear section is used for both the LM4 PTR as well as the LM4 RIS PTR, but can also be used with part 299-2 to create a barrel for the LM4C PTR.

#64: This front section fits with part #43 to complete either the LM4 PTR or the LM4 RIS PTR.

#299-2: This front barrel section fits with part #43 to complete an LM4C PTR barrel.

#LM4 Standard and RIS Complete: Save $5.00 by buying a preassembled LM4 PTR/LM4 RIS PTR outer barrel!

*Both extensions, parts #64 and #299-2 are cross compatible with all KM4 AEG outer barrels!


All barrels are to scale with the measuring tape and all visible threads are 14mm CCW, so you can customize your rifle to fit your game style!

Weight 1 lbs
Dimensions 1 × 1 × 1 in
Barrel Section

#299-2, #43, #556-7, #64, LM4 PTR and LM4 RIS PTR Complete (43, 64)