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proprietary rail

  1. USP 40 /p30 surefire x-300 mount Special mount?

    HK HANDGUN TALK
    Quick question concerning a surefire tactical weapon light, Surefire X300 Ultra LED Handgun or Long Gun WeaponLight - X300U-A or x300u-B What I am asking is if this weapon light will work on both HK pistols I own or if a special mount for the USP with a proprietary rail system is required? I...
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