Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Polymer Dual Coupler adjustable Fits 5.56 and 7.62 Magazines For AK47 M4 The coupler which allows the user to attach two magazines together for more efficient speed reloads.The features a two-piece bolt on design and durable， lightweight reinforced polymer construction.Features: Fits 5.56 and 7.62 magazines. Impact resistant polymer construction provides light weight and resists operational abuse. Wide-set， two-piece bolt-on design resists flexing. Integral grooves interface with ribbing to eliminate slippage