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Mfg Item #: 05-278B
The Super Modular Rail (SMR) MK4 M-LOK are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o'clock positions. It also features Geissele's proprietary 2" long barrel nut.
| Shipping Length | 4.25 |
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ATTENTION: If you are ordering the last of an available quantity and you do not check with an associate of Crossroads Firearms before placing your order. You may be at risk of getting a full refund/ cancellation if our in house inventory or distributors are out of stock before your online order has been processed.