SIG SAUER Barrel/Gas Block Assy MCX Piston 5.56 16" Spear LT

Gun Parts Sig Sauer UPC 798681675241

SIG SAUER Barrel/Gas Block Assy MCX Piston 5.56 16" Spear LT
$769.99

at Optics Planet ·

Free shipping over $49

5 retailers · $769.99 to $840.79 shipped

This listing: Kentucky Gun Co $826.85

Firearm Data Lab may earn a commission when you buy through this retailer link. Commissions never change a price or move a cheaper listing below a pricier one. When two retailers tie exactly, the one that pays us a commission is listed first.

Offers

Shipping estimate for one item to the lower 48 from the retailer's published policy or feed; the retailer's cart is final.

Price history

Lowest price across retailers each day.

Lowest seen
$758.90
Typical price
$758.90
Tracked since
Oct 19, 2026

Today's best price is $11.09 above the 25-day low and 1% above typical.

Embed this chart

A live price-history image, updated as we track new prices. Paste the snippet that matches where you're posting.