Description

Details
Easily convert to or replace your MCX or MPX stock assembly with the new thin folding stock 2.0. Improving on our wildly popular, original thin folding stock, this new version is a must-have for your rifle.

Lighter and stronger than before, this refined version maintains the skeletonized profile while adding key performance upgrades. It now includes an integrated, steel-reinforced limited-rotation Sling QD (Quick Disconnect) slot and a removable polymer cheek piece with increased height over bore for improved sight alignment with optics. Finished with a newly contoured lightweight buttpad for added comfort and control.

Compatible ONLY with MCX and MPX or rifles with 1913 stock interface, and will not work with the SIG SAUER CROSS.

Specs:

Overall length - 10"
Overall height - 5"
Buttpad width - 0.9"
Weight - 12.03 oz

Specifications:
Brand SIG SAUER
Model SIG MCX, SIG MCX-SPEAR LT, SIG MPX
Category Stocks
Weight 12.03 oz [0.75 lbs]
Color Black
Locking Yes
Folding Yes
Telescoping No
Adjustable Positions Fixed Length
Attachment Type M1913
Sling Attachment Type Quick Disconnect (QD) Swivel Slots

SKU: 8901908

Browse for more Stocks, Grips, Furniture Sig Sauer.

Rebates for Sig Sauer brand

Exp. date: 01.09.2026
Buy a New Applicable SIG SAUER Handgun Between 06/01/26 and 08/31/26, Receive One (1) SIG SAUER FOXTROT-EDC COMPACT Flashlight. (SKU: SOFEC002)
*Purchases of all SIG SAUER P365, P320, M17-M18, P210, P211, P220, P226, P229 and 1911 models are included in this offer. All other SIG SAUER Handguns are excluded from this promotion.

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