Sig Sauer 300 Blackout Pistol for sale
(0)
SIG Sauer MCX Rattler PCB .300 AAC Blackout in Black
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
5.5"
Caliber:
.300 AAC Blackout
Capacity:
30
Finish Per Color:
Coyote / Black
(0)
Sig Sauer MCX Virtus 300 Blk 9" 30 Round Pistol, Stealth Gray
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
9"
Caliber:
.300 AAC Blackout
Capacity:
30
Finish Per Color:
Gray
(0)
Sig Sauer MCX Spear 300 Blackout 9" 30rd Pistol, Black - PMCX-300B-9B-LT-B
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
9"
Caliber:
.300 AAC Blackout
Capacity:
30
Finish Per Color:
Anodized
(0)
Sig Sauer MCX Rattler 5.5" 300AAC Pistol with Adjustable Brace, Black - PMCX-300B-5B-TAP
Brand:
Sig Sauer
Barrel Length:
5.5"
Caliber:
.300 AAC Blackout
Capacity:
30+1
Finish Per Color:
Black
Rounds:
30
Marketplace Insights
★ 5.0/5
based on 8 customer reviews across 27 variants from 36 retailers
Universally praised rifle with exceptional accuracy, handling, and reliability; highly sought-after with customers reporting significant improvements over predecessor models.
What customers like
Accuracy & Performance63%
Amazing accuracy for such a small barrel
Lightweight & Handling50%
balance is spot on making it easy to maneuver
Improvement Over Virtus38%
A genuine improvement over the Virtus
Reliability & Function25%
Mine functions 100% with subs and supers
Common concerns
Frequently Asked Questions
Sig Sauer 300 Blackout Pistol for sale
What is the SIG MCX in 300 blackout?
The SIG MCX in .300 Blackout is a semi-automatic rifle from SIG SAUER available in Rattler, Virtus, and Spear configurations. It features a cold hammer-forged barrel, ambidextrous controls, and a modular design suited for hunting, home defense, and tactical applications. Retail prices typically run around $2,500.
What is the effective range of the sig Rattler 300blk?
The MCX Rattler in .300 Blackout is effectively a 100-yard rifle with supersonic ammunition due to its short barrel. Subsonic loads are best kept within 100 yards. The platform is designed for close-quarters and tactical use, not long-range precision shooting.
Is the SIG MCX rattler legal to own?
Legality depends on your location. Federally, semi-automatic MCX Rattlers are legal to own. Some states restrict them under assault weapon laws, requiring modifications like pinned stocks or welded muzzles. The SBR variant requires NFA registration, but the pistol configuration with a pistol stabilizing brace is not subject to NFA regulations. Consult a local firearms dealer or attorney for your jurisdiction's specific requirements.
Can civilians buy a SIG MCX?
Yes, civilians can buy SIG MCX rifles. Semi-automatic models like the Rattler, Virtus, and Spear are federally legal and available through licensed dealers. State laws vary. The MCX-SPEAR comes in 7.62x51 and 6.5CM; 277 SIG Fury is listed as coming soon. Prices typically run around $2,500.
How much does the MCX rattler cost?
The MCX Rattler typically costs between $2,400 and $3,500 depending on caliber, barrel length, and configuration. The pistol variant generally runs around $2,500, while rifle configurations and bundled optics packages push prices higher.
Does the sig spear come in 300 Blackout?
SIG offers the MCX Spear-LT in .300 Blackout, not the standard MCX Spear. The Spear-LT is a distinct product line, available as an SBR or pistol with a 9" barrel. Our marketplace shows 27 variants across 36 retailers, with 23 in stock, typically around $2,500.
Is the MCX Virtus discontinued?
The MCX Virtus has been discontinued. SIG Sauer lists it among discontinued products, and it has been replaced by the Spear-LT. Our marketplace may still show remaining inventory from sellers, but SIG is no longer producing the Virtus.
How does the MCX VIRTUS compare to an AR-15?
The MCX Virtus uses a short-stroke piston instead of the AR-15's direct impingement, producing less heat and fouling in the action. It also features a folding stock and faster caliber/barrel swaps. AR-15s cost $600–1,200; the Virtus retails around $2,233. Both are reliable platforms.
What are the common problems of Virtus?
Common Sig Sauer 300 Blackout pistol issues reported by owners include feeding and cycling problems with certain ammunition types, suppressor compatibility concerns, and occasional trigger reset issues. Regular cleaning and using quality ammunition helps minimize malfunctions. Our marketplace currently lists several of these pistols with verified seller ratings.
How much does a Virtus cost?
SIG Sauer MCX Virtus rifles typically cost around $2,500. Most listings fall between $2,586 and $3,500 depending on caliber, barrel length, and configuration. We track 27 variants across 36 retailers, with 23 currently in stock.
Where is the SIG MCX Virtus manufactured?
SIG SAUER manufactures the MCX Virtus at its facility in Newington, New Hampshire.