The BCM 1913 Light Mount Modular is an ambidextrous aluminium light mount for AR-15 and M4 rifles, attaching to a KeyMod handguard and presenting a 1913 Picatinny stub for a weapon light.
This is the KeyMod version. The same mount is made for M-LOK handguards — check which handguard you have before ordering.
Instead of clamping the light body, this mount provides a short 1913 Picatinny rail section at the 3 or 9 o'clock position, so it takes any light built for a Picatinny interface rather than one specific body diameter. Change the light and the mount stays on the rifle.
It is fully ambidextrous, so a single part serves either side, and it offers an optional high and low mounting position for the 1913 rail section — useful for clearing a bulky handguard or bringing the light in tight against it. The body is low-profile aluminium and weighs 0.9 oz (26 g). Fitting uses a Torx wrench with the screws tightened to 30 in-lb, and Bravo Company USA suggest blue thread-locking compound if you want the fasteners secured.
Why shooters choose the BCM 1913 Light Mount Modular
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1913 Picatinny stub — takes any light with a Picatinny interface, not one body size
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High and low rail positions — set the light close in or clear of the handguard
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Fully ambidextrous — 3 or 9 o'clock from a single part
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0.9 oz (26 g) aluminium — low-profile and snag-resistant
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Defined torque figure — 30 in-lb, with blue thread-locker optional
What the BCM 1913 Light Mount Modular fits
Fits KeyMod handguards and forends on AR-15/M4 rifles, including UK straight-pull AR-15 builds. This is the KeyMod version and will not attach to an M-LOK handguard — for that, order the BCM 1913 Light Mount Modular for M-LOK, which is the same mount in the other interface. Once fitted it accepts any weapon light built for a 1913 Picatinny interface. If your light has a bare body rather than a rail clamp, the BCM Modular Scout Light Mount is the KeyMod mount that grips the body directly instead. No light is included.
Specifications
| Platform |
AR-15 / M4 |
| Fits |
KeyMod handguards and forends; weapon lights with a 1913 Picatinny interface |
| Type |
Modular 1913 light mount, fully ambidextrous |
| Material |
Aluminium |
| Weight |
0.9 oz (26 g) |
| Mount interface |
KeyMod to 1913 Picatinny, 3 or 9 o'clock |
| Adjustment |
Optional high and low position for the 1913 rail section; Torx fasteners to 30 in-lb |
| Brand |
Bravo Company USA |
| MPN |
BCM-1913LM-KM |
One mount, any Picatinny light, either side of the rifle. Order the BCM 1913 Light Mount Modular for KeyMod today — in stock at Xtreme Tactical Gun Parts with £5 tracked UK delivery in 7–10 business days.
Explore more: AR-15 Parts & Accessories, Bipods & Mounts or browse all Bravo Company USA.
