Description
When the US Special Operations Command put out a request for a Personal Defense Weapon (PDW) to replace the MP5, Sig Sauer responded with the MCX Rattler; an absolutely groundbreaking short barrel rifle. The Rattler is based on Sig Sauer’s flagship MCX modular rifle, featuring its short-stroke recoil gas piston operating system. What separates Sig Sauer’s MCX platform from other AR/M4 style rifles is the recoil system that totally eliminates the need for a buffertube, making the MCX Rattler more compact than any AR/M4 rifle ever produced. The MCX Rattler PSB (pistol version) has a length of 19.3 inches when arm brace is collapsed and the MCX Rattler SBR has a length of only 16 inches when the stock is folded; both versions of the MCX weigh under 6 lbs. The rifle is currently chambered in .300 BLK features a 5.5 inch suppressor ready barrel and a aluminum free-floated handgaurd with M-LOK attachment points.
Additional Features and Information
Hammer forged carbon steel barrel and three pronged flash hider
Features the Sig Enhanced Trigger
Ambidextrous AR-style controls and dual-paddle bolt-release
M1913 rail from charging handle to muzzle
Two position gas regulator for suppressed or unsuppressed fire
3 position telescoping arm brace (PSB) or folding stock (SBR)
Caliber: .300 Blackout
Weight: 5.1 lbs w/ magazine
Rifle Overall Length: 19.3″
Action: Gas Piston – Semi-Automatic
Trigger: Sig Enhanced
Safety: AR Selector Switch
Rifle Barrel Length: 5.5″
Rifle Barrel Twist: 1:5
Rifle Stock: Pistol Brace
Scope Mount: Picatinny Rail
Magazines Included: (1) 30 Round
Iron Sights No
Caliber or Gauge: .300 BLK
Handedness Right Hand





Sig P365 Burnt Bronze 9mm, 3" Barrel, Sig XRay3 Night Sights, 10rd Mag
WTHBY VGT270NR4O VGD 270
SPG MP9226 M1A PRE 308 COMP CARBON BLK
WTHBY VDT223RR4O VGD 223 SPRTR
Henry 30-30WIN 20" Octagon Barrel 5+1 H009BL
HENRY H006ES BIG BOY EAGLE SCOUT 100TH 44MAG
TCA 28205651 PRO-HUNTER RFL 308 SS FLEXTECH
RUG 5855 M-14/5P 223 BLKSYN 5R
HENRY H004FOE GOLDEN BOY ORDER OF EAGLES 22LR
Rock River Arms LAR-15LH LEF-T CAR A4 AR-15 5.56 16" Barrel, 30 Rd Mag
Zastava EZ-9 Compact 9mm 3.85" Polymer Grips, Blued Finish, 15 Round
Ruger Hawkeye Hunter 6.5 Creedmoor 24" 4+1 47170
CZ Slavia 634 Lux Air Rifle Break Open .177 Pellet Red/Black Stk Black
Sig Airgun Ammo, Wraith Pellets, .177 Caliber, 300ct
Arsenal AK74 Pistol 5.56/223 Black, 5 Rd Mag
RUG 5801 M-14/5 223 BL WD 5R
Arsenal SAM7K-34 AK Pistol 7.62x39mm, 8.5" Barrel, No Stock, Polymer, Black, Ships w/ 5rd Mag
Browning BLR Lightweight 450 Marlin 20" Barrel W/ Brass Bead Front Sight...
Traditions Competitive Starter Pistol Chambered For 209 Shotgun Primers With Carry Case
Glock G19 Gen4 9mm, 4" Barrel, Midnight Bronze Finish 15rd Mag
Robinson Arms XCR-L Pistol 5.56/223 7" Barrel Keymod Rail, Black Finish Tailhook Brace