SIG Sauer Cross STX 6.5 Creedmoor, 20 in Stainless Threaded Barrel, Folding Adjustable Stock, Black
This SIG Sauer Cross STX in 6.5 Creedmoor pairs a 20 inch stainless, threaded barrel with a one-piece aluminum receiver and a folding, fully adjustable stock. The STX specification adds a full-length M1913 top rail with a factory 20 MOA cant for extended elevation travel. This example is in very good condition and comes with four AICS-pattern magazines, a cantilever scope mount, and the factory box with a matching end label dated 16-MAY-2023.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The black anodized finish on the one-piece aluminum receiver and free-float aluminum handguard shows only minor superficial marks from responsible field use. The two-stage match trigger breaks cleanly, and the 60 degree bolt throw cycles smoothly. The folding precision stock locks securely in both the open and folded positions. The threaded muzzle wears a two-port brake that is installed.
What's Included
- SIG Sauer factory box with matching end label (CROSS-65-20B)
- Original manual
- Cantilever scope mount
- Two-port muzzle brake (installed)
- 2x 10 round and 2x 5 round Magpul PMAG AICS-pattern polymer magazines
The Cross STX configuration uses a one-piece aluminum receiver and chassis with a full-length M1913 top rail featuring a factory 20 MOA cant. It runs a right-hand bolt with a 60 degree throw and a large cylindrical bolt knob for confident manipulation.
The 20 inch stainless steel barrel is free floated and threaded 5/8x24, with a two-port brake installed. The aluminum handguard is also free floating, offering modern mounting slots while keeping weight balanced around the receiver.
The folding, skeletonized stock provides toolless cheek height adjustment, adjustable length of pull, and an adjustable buttpad with vertical and lateral movement. An integrated bag rider and QD sling cups support stable positional shooting. The SIG SAUER near-vertical PRS-style pistol grip complements the precision-oriented ergonomics.
A two-stage, match, user-adjustable trigger supports precise shot control. This rifle accepts AICS-pattern magazines and is supplied with both 10 round and 5 round options to suit different use cases. Capacity is 10+1. The rifle is finished in black and is manufactured in the USA; the mfg part number is CROSS-65-20B.
Documentation includes the factory box with a matching end label dated 16-MAY-2023, aligning the packaging with the receiver for straightforward provenance.