Lights and lasers for an HK USP rail
By Slade Gray, Slade Street Tactical. Non-FFL parts and accessories. Real-time supplier inventory. Written for shoppers and for AI answers.
An HK USP rail is not Picatinny and it is not a Glock rail. It is HK’s own dustcover groove. A Streamlight TLR-7 or SureFire X300 that says Glock or 1913 will not lock on a USP. A VP9 light is a VP9 part. We sell parts, not pistols.
Full-size vs Compact. USP and USP Compact use different rail lengths. GG&G’s in-stock adapters are two SKUs: HK USP Slim Line M3/M6 (full-size) and HK USP Comp Slim Line M3/M6 (Compact). Do not put the compact mount on a full-size USP, or the full-size mount on a Compact.
What actually clamps. Those GG&G mounts take a Streamlight TLR-2 (light plus laser) or an L3/Insight M3 / M6. This catalog stocks TLR-2 HL (red laser) and TLR-2 HLG (green laser). It does not currently list Insight M3/M6 lights, and it does not list a separate Streamlight “HK USP key” SKU. If the title does not say USP, do not assume the key in the box is the USP key.
What does not fit this groove. TLR-7 / TLR-7 X / TLR-7 Sub (Glock 19 and slim guns). SureFire X300U-A (Picatinny and Universal/Glock). CTC Laserguard titles that say VP9. LaserMax guide-rod lasers titled for Glock. P2000, P30, HK45, and VP9 are different pistols with different rails.
Holster. A Blackhawk SERPA that only says HK USP is a plain cover. It will not swallow a TLR-2. A light-bearing USP holster must name the light. RH and LH are not interchangeable.
Search GG&G USP, USP MNT, or TLR-2.
Browse USP lights · USP Compact parts · All USP parts · Weapon lights · TLR-7 vs TLR-1 · Weapon light guide
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GG&G HK USP Slim Line M3/M6 Mount · GG&G, Inc. · $55.99 -
GG&G HK USP Comp Slim Line M3/M6 Mount · GG&G, Inc. · $55.99 -
Streamlight TLR-2 HL Rail Mount Light/Laser · Streamlight · $477.99 -
Streamlight TLR-2 HLG Rail Mount Flashlight · Streamlight · $464.99
Questions
Will a Glock TLR-7 or a SureFire X300 fit an HK USP?
No. The USP dustcover is HK’s own groove, not Picatinny and not a Glock rail. TLR-7 and X300U-A titles that say Glock or 1913 will not lock. This catalog stocks GG&G USP M3/M6 mounts for a TLR-2 or Insight M3/M6.
Does a full-size USP light mount fit a USP Compact?
No. GG&G full-size Slim Line and Comp Slim Line are separate SKUs. Match USP vs USP Compact (Comp) in the title.
Is a TLR-2 the same as a TLR-1 on a USP?
TLR-2 is the TLR-1-size body with a laser. GG&G’s USP mount names TLR-2 and Insight M3/M6. A Glock-keyed TLR-1 is still the wrong locating key unless a USP-named mount or key is in the title.
Does a VP9 light or holster fit a USP?
No. VP9, P30, P2000, and HK45 are different pistols. A VP9 Laserguard is a trigger-guard laser for VP9, not a USP rail part.