KM4 & RM4 Series Enhanced Semi-Tightbore 6.05mm Brass Inner Barrel
The KWA KM4 and RM4 Series semi-tightbore 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.
273mm: KM4 CQB, KM4 Commando, CQR Mod 2, KM4 SR7
395mm: KM4A1, KM4 RIS, CQR MOD 1
425mm: KM4 SR10
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- Online purchases: 14 days from the date of delivery with copy of emailed receipt for exchange or store credit only. NO EXCEPTIONS!
- All guns are to be tested upon purchase, no damaged or defective gun returns are accepted (we have a tech available if needed).
- All used items have been tested and are sold "AS IS", and are not eligible for return.
- All used gear is not eligible for return.
- All consumable items are non-refundable if opened (unused BBs can be exchanged for different BBs of equal or lesser value).
- All guns being picked up from our techs are tested and cleared upon return and are not under warranty.
- Customized products are non-refundable in any circumstances.
- If the item is defective or you receive the wrong item, please contact our customer service at firstname.lastname@example.org for further instructions.
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