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Mfg Item #: KITTRDSIGHTRAIL
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This item is a factory replacement sight rail for the Sig M400 TREAD. This model has 4 picatinny slots.
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.