The KWA KM4 and RM4 Series semi-tightbore 425mm 6.05mm brass inner barrel is made of the highest quality material and is meticulously crafted to precise specifications. With this inner barrel, you can customize your KM4 or RM4 Series rifle to reach out and touch the competition.
Although this barrel is the stock inner barrel for the KM4 SR10, it can be used in any KM4 or RM4 Series rifle! Customize your KM4 or RM4 with our large selection of rail systems and outer barrels. The possibilities are endless!
The KWA metal receiver carry handle is made to fit almost any railed AR-15 or M16 style receiver and is made of durable metal alloy. This assembly comes complete with toolless knobs to easily attach and detach the handle, and is strong enough to carry the weight of any full metal AR-platform rifle. Use this to customize your KM4, RM4, or LM4 to the look you want. Features a level channel for installation of aftermarket receiver carry handle rail attachments, as well as a sight that has adjustment knobs for windage & elevation.
For a very limited time, KWA is re-releasing our rear flip-up metal sight, which fits all standard rail systems. This high quality all-metal piece features a windage knob and folds down to a flat position. Grab yours fast, these are only available in extremely limited quantity!