Sig Sauer MCX Rattler for sale
(0)
Sig Sauer MCX Rattler LT Pistol 7.62 X 39 7.75" Barrel 28-Rounds
Action:
Semi-Auto
Barrel Length:
7.75"
Caliber:
7.62x39mm
Capacity:
28+1
Finish Per Color:
Black
(0)
Sig Sauer MCX Rattler LT Pistol 5.56 7.75" Barrel 30-Rounds
Action:
Semi-Auto
Barrel Length:
7.75"
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Black
(0)
Sig Sauer SIG MCX 5.56 Nato Pistol Semi 5.5in Bbl NO BRACE Al MLOK Hg (1) 30 Rd Mag Rattler Pistol PMCX-5B-TAP-NB
Brand:
Sig Sauer
Action:
Short-stroke recoil gas piston operating system
Barrel Length:
5.5 inches
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Sig Sauer MCX Rattler LT .300 BLK 6.75" 1:5" CHF Bbl Black Pistol w/(1) 30rd Mag PMCX-300B-6B-LT-PCB
Action:
Semi-Auto
Barrel Length:
6.75"
Caliber:
.300 AAC Blackout
Capacity:
30+1
Finish Per Color:
Black
(0)
Sig Sauer MCX Rattler LT SBR 5.56 / .223 Rem 7.75" Barrel 30-Rounds
Action:
Semi-Auto
Barrel Length:
7.75"
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Black
(0)
SIG SAUER MCX RATTLER PISTOL .300 AAC BLACKOUT 5.5" 30RD BLACK NB
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
5.5 inches
Caliber:
.300 AAC Blackout
Capacity:
30
Finish Per Color:
Black
(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 SIG MCX Rattler 5.56 NATO 5.5" Bbl Short Barrel Rifle w/(1) 30rd Mag RMCX-5B-TAP-SBR
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
5.5"
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(1)
Sig Sauer MCX Rattler PCB 5.56 NATO AR Pistol - PMCX-5B-TAP
Brand:
Sig Sauer
Action:
Semi-Auto
Barrel Length:
5.5”
Caliber:
.223 Rem/5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Sig Sauer MCX Rattler LT SBR .300 AAC Blackout 6.75" Barrel 30-Rounds
Action:
Semi-Auto
Barrel Length:
6.75"
Caliber:
.300 AAC Blackout
Capacity:
30+1
Finish Per Color:
Black
(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
Frequently Asked Questions
Sig Sauer MCX Rattler for sale
How much does the MCX rattler cost?
The SIG Sauer MCX Rattler typically costs around $2,500, with most listings ranging from $2,351 to $2,540 new depending on caliber and configuration. Prices vary across retailers and reflect the specific variant chosen.
Is the SIG rattler a good gun?
The MCX Rattler is generally well-regarded for its compact size, reliability, and accuracy. It works well as a personal defense weapon or tactical firearm. Most owners report satisfaction with its performance, though its higher price point is a common criticism. It suits those needing a short, maneuverable platform.
Is the SIG rattler LT legal?
The MCX Rattler LT is federally legal as a semi-automatic rifle. State laws vary — Maryland approves it, but some states restrict short-barreled rifles or certain features. Check your specific state and local laws before purchasing.
What calibers are Sig MCX rattler?
The SIG MCX Rattler is available in .300 AAC Blackout, 5.56 NATO, and 7.62x39mm. The current MCX Rattler LT uses 6.75 or 7.75 inch barrels in its ultra-compact configuration, with longer barrel options available depending on the variant and market.
Is the SIG MCX rattler automatic?
No, the SIG MCX Rattler is semi-automatic, firing one round per trigger pull. Military and law enforcement variants can be configured for full-auto or burst fire, but civilian models are semi-automatic only.
What makes the SIG Sauer rattler unique?
The MCX Rattler is an ultra-compact PDW using a short-stroke gas piston system that eliminates the buffer tube, allowing a folding stock and 16-inch folded length. Its modular design enables quick caliber and barrel swaps, making it exceptionally adaptable for close-quarters use.
Is the sig mcx an ar-15?
No. The SIG MCX is its own platform using a short-stroke gas piston system, not an AR-15. It shares AR-style controls but has a different operating system and modular design. The two are not interchangeable, though they look similar.
What is the effective range of the Rattler?
The Rattler's effective range depends on caliber. In 5.56mm, expect roughly 300 yards. In .300 Blackout, subsonic loads can reach 300-400 yards, though with reduced energy on arrival, while supersonic rounds offer stronger terminal performance at similar distances. The 5.5-inch barrel makes it best suited for close-quarters use.