I wouldnt trust them. There is a reason Lancer has steel feedlips and why magpul never made a tanslucent magazine. In order to get a translucent mag for the AR-15 the feed lips will be very thin, and translucent polymer is by nature far weaker than black polymer.
Also lets not forget HK's last go at mags that ended up so bad they actually got banned for use. Ill try to dig up the proof.
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