PRE-ORDER ETA: JUNE, 30, 2023
-SR-BUP-ARG is a bullpup conversion kit designed for M4A1 "RIS" GBB
-Gen3 3D printed technology, better durability for airsoft sport
-Including extended barrel
-Optional Maple Leaf short-stroke bolt can solve GBB buffer tube problem for a bullpup kit.
-early bird pre-order discount= 15% off, coupon code: BUPARG15
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