American Tactical Milsport 300 Blackout Optics Ready Semi-Automatic Rifle with MLOK Rail

American Tactical Milsport 300 Blackout Optics Ready Semi-Automatic Rifle with MLOK Rail
$499.99 $629.95

Temporarily Out of Stock

Includes FREE shipping
  • DANIEL DEFENSE DDM4V7 5.56MM 16` BARREL BLACK MAGPUL FURNATURE

    Daniel Defense DDM4 V7 5.56mm Semi-Automatic Rifle with 16 Inch Barrel and MFR Rail
    $2,013.00 $1,349.99

  • SPRINGFIELD SAINT 5.56MM VICTOR VS 16` OPTIC 4XMAGS, BAG

    Springfield Saint Victor 5.56 NATO Gear Pac with Viridian Venta Green Dot, Four Mags and Rifle Bag
    $1,368.00 $1,099.99

  • ONE HORSE OH-15 5.56 15` RAIL M-LOK

    One Horse OH-15 5.56 NATO Semi-Automatic Rifle with 16 Inch Socom Barrel and M-LOK Handguard
    $549.99 $499.99

  • SIG SAUER 516 G3 5.56 NATO 30+1 16` BLACK THREADED BARREL, BRONZE CERAKOTE ALUMINUM RECEIV

    Sig Sauer 516 G3 5.56 NATO Semi-Auto Rifle with Bronze Signature Finish
    $2,299.99 $2,099.99

  • COLT AR15A4 5.56MM SEMI-AUTOMATIC RIFLE

    Colt AR15A4 5.56mm Semi-Automatic Rifle
    $1,399.00 $1,169.99

  • SPRINGFIELD SAINT EDGE 5.56 EVAC PISTOL 7.5` BBL

    Springfield Saint Edge EVAC 5.56mm AR-Pistol with 7.5 in Barrel
    $2,299.99

  • ANDERSON MANUFACTURING AM-15 223 WYLDE BATTLE WORN AMERICAN FLAG

    Anderson Manufacturing AM-15 223/5.56mm AR15 with Battle Worn American Flag Cerakote Finish
    $1,147.00 $969.99

  • NEXGEN NG15 223 WYLDE RIFLE PEWTER NITRIDE

    NexGen Arms NG15 223 Wylde Semi-Auto Rifle with Pewter Nitride Finish
    $449.99

  • NEXGEN NG15 223 WYLDE RIFLE BLACK NITRIDE

    NexGen Arms NG15 223 Wylde Semi-Auto Rifle Black Nitride Finish
    $449.99

  • NEXGEN NG15 223 WYLDE RIFLE BRONZE NITRIDE

    NexGen Arms AR-15 223 Wylde Semi-Auto Rifle with Bronze Nitride Finish
    $449.99

  • DIAMONDBACK DB15 5.56 NATO 30+1 16` BLACK NITRIDE THREADED BARREL TIGER STRIPE CAMO CERAKOTE

    Diamondback DB15 5.56 NATO Semi-Auto Rifle with Tiger Stripe Cerakote Finish
    $828.00 $729.99

  • Hornady 300 Blackout 208 gr Subsonic FMJ Frontier 20/Box

    Hornady 300 Blackout 208 gr Subsonic FMJ Frontier 20/Box
    $15.99
    ($0.80 / round)

  • Hornady 300 Blackout 125 gr FMJ Frontier 20/Box

    Hornady 300 Blackout 125 gr FMJ Frontier 20/Box
    $13.99
    ($0.70 / round)

  • Norma 300 Blackout 147 gr FMJ Range and Training 20/Box

    Norma 300 Blackout 147 gr FMJ Range and Training 20/Box
    $16.99
    ($0.85 / round)

  • Federal 300 Blackout 150gr Jacketed Soft Point Power-Shok 20/Box

    Federal 300 Blackout 150gr Jacketed Soft Point Power-Shok 20/Box
    $34.99 $19.99
    ($1.00 / round)

  • Federal 300 Blackout 190gr Fusion Tipped Subsonic 20/Box

    Federal 300 Blackout 190gr Fusion Tipped Subsonic 20/Box
    $40.99 $27.80
    ($1.39 / round)

  • Hornady 300 Blackout 190 gr Subsonic Sub-X 20/Box

    Hornady 300 Blackout 190 gr Subsonic Sub-X 20/Box
    $27.99
    ($1.40 / round)

  • Sig Sauer 300 Blackout 125 gr FMJ Elite Performance 20/Box

    Sig Sauer 300 Blackout 125 gr FMJ Elite Performance 20/Box
    $19.99
    ($1.00 / round)

  • Federal 300 Blackout 150 gr FMJ Boat Tail American Eagle 20/Box

    Federal 300 Blackout 150 gr FMJ Boat Tail American Eagle 20/Box
    $28.99 $15.28
    ($0.76 / round)

  • Hornady 300 Blackout 110 gr V-Max Black 20/Box

    Hornady 300 Blackout 110 gr V-Max Black 20/Box
    $26.99
    ($1.35 / round)

  • Remington 300 AAC Blackout 220 gr OTFB UMC 20/Box

    Remington 300 AAC Blackout 220 gr OTFB UMC 20/Box
    $29.99
    ($1.50 / round)

  • Hornady 300 Blackout 135 gr FTX Custom 20/Box

    Hornady 300 Blackout 135 gr FTX Custom 20/Box
    $29.99
    ($1.50 / round)

  • Sig Sauer 300 Blackout 125 gr Sierra MatchKing Elite Match OTM 20/Box

    Sig Sauer 300 Blackout 125 gr Sierra MatchKing Elite Match OTM 20/Box
    $27.99
    ($1.40 / round)

  • AMEND2 MOD 2 AR-15 5.56 MM 30 RD BLACK MAG

    Amend2 AR15/M4 Mod.2 5.56 NATO 30 Round Magazine (Black)
    $14.99 $6.97

  • MAGPUL PMAG 30 GEN M2 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M2 5.56 NATO 30 Round Black Magazine
    $12.95 $9.85

  • MISSION FIRST TACTICAL AR-15 5.56 NATO 30-ROUND MAGAZINE

    Mission First Tactical AR-15 5.56 NATO 30-Round Magazine
    $6.97

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 30 Round Black Magazine
    $14.95 $11.99

  • MAGPUL PMAG 20 GEN M3 AR-15 556 NATO 20 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 20 Round Black Magazine
    $13.95 $10.99

  • MAGPUL PMAG 30 GEN M2 AR-15 556 NATO 30 RD WINDOW MAG

    Magpul PMAG GEN M2 5.56 NATO 30 Round Magazine with Window
    $15.95 $12.79

  • MAGPUL TMAG 30RND 223RE/5.56 NATO COMPATIBLE W/AR15/ OLIVE DRAB TRANSLUCENT

    Magpul TMAG 30 AR/M4 Gen M3 223/5.56mm 30-Round Translucent OD Magazine
    $23.95 $19.99

  • AMEND2 MOD 2 AR-15 5.56 MM 20 RD BLACK MAG

    Amend2 AR15/M4 Mod.2 5.56 NATO Rem. 20 Round Magazine (Black)
    $14.99 $10.99

  • ATI SCHMEISSER S60 223/5.56MM 60-ROUND AR-15 MAGAZINE WITH WINDOW (GEN2)

    American Tactical Schmeisser S60 5.56 NATO 60 Round AR-15 Magazine with Window (Gen2)
    $84.95 $24.99

  • MAGPUL PMAG 10 GEN M3 AR-15 556 NATO 10 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 10 Round AR-15 Magazine
    $12.50

  • AMEND2 AR-15 5.56/.223 MOD-A BLACK 30 ROUND M81 CAMO

    Amend2 AR 15 5.56/223 MOD A 30 Round Camo Magazine
    $11.07

  • MAGPUL PMAG 40 GEN M3 AR-15 556 NATO 40 RD MAG

    Magpul PMAG 40 AR/M4 GEN M3 5.56 NATO 40 Round Magazine
    $19.95 $19.20

Product Description

What's in the Box

  • ATI Mil-Sport 300 AAC Blackout Semi-Automatic Rifle
  • (1) 30-Round Magazine
  • Cable Lock
  • Owner's Manual

The Mil-Sport is made from quality forged 4140 aluminum, and is built to take anything you throw at it. Introduced in 2012, the Mil-Sport M4 Carbines became instant hits among customers looking for top quality AR-15 style rifles with forged aluminum receivers. Fine-tuned with many popular features, these U.S. built beauties perform perfectly right out of the box, and are priced just right.

Firearm Specifications

  • Manufacturer: American Tactical Imports
  • Model: Mil-Sport 300 Blackout
  • Item Number: ATIG15MS300ML15 
  • Caliber: 300 AAC Blackout
  • Barrel Length: 16"
  • Twist Rate: 1:8"
  • Upper & Lower Receiver: Aluminum Forged
  • Rail: 16" MLOK Rail
  • Magazine Capacity: 30-Rounds

Customer Comments & Questions

Customer Reviews

(5 out of 5) Very happy with this purchase
by Arles from Cola, SC on February 29, 2020

This ATI Milsport 300 Blackout exceeded my exceptions. Have only run a couple clips of Magtech 115grain HP. So far it runs great and seems to be very accurate. Only complaints I have are easy enough to fix if your handy.
Hand guard is just a tad out of alignment with the upper housing. The 6 screws holding he hand guard in place are thread locked. So heat them up before attempting to unscrew. = Plastic trigger, hammer, and upper/lower assembly pins. They seem up to the task, but only time will tell.

(5 out of 5) AT milsport 300 Blackout
by Fleetwood from Fairburn, GA on July 12, 2022

Ordered on a Friday and it was delivered the following Thursday. Sighted in with 20 rounds of Winchester 125 grain 300 Blackout. No jams, no misfires. Nice overall feel. Enjoyed shooting. Nice gun at a nice price.