E&L 191 TPU buffer set

by Z_H Tacticool

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191 qbz-191 buffer

· Protect the receiver· Improve consistency of fps · Tested with 95A TPU· QBZ191_Buffer: Cushion impact of the bolt & Protect receiver· QBZ191_Buffer2：Cushion impact of the bolt· QBZ191_Buffer3：more durable than o ring Field tested and lasted over 1000+ rounds ***use at your own risk***