Sig Sauer CAL-X Kit - MCX .300 Blackout - 5.5" w/ Bolt and Tapered Lug

Regular Price: $599.00
Our Price: $549.00
UPC: 798681587728
In stock
as of 04/08/2020 5:54PM CST

Store Inventory
Available Online4
Fountain Valley, CAOut of stock
Plano, TX4

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Use this factory SIG Cal-X kit to convert your MCX to an MCX Rattler in .300 BlackOut. Includes a 5.5" BlackOut barrel assembly with tapered lug bolt. Compatible with standard AR15 magazines.

A new tapered bolt lug design results in smoother cycling and extends the bolt life.

All NFA rules apply to barrels less than 16" in length.

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