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American Tactical Imports Mil-Sport M4 HD9 Carbine

Item # 988850
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Ships from vendor in 3-5 business days.

Additional Information:

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  • Firearms shipping charge of $25.00 per item.
  • You must be at least 21 years old to purchase this item. State and local laws may vary.


  • 9" Head Down KeyMod Handguard

  • 16" 4150cv Nitride Treated M4 Barrel

  • 6-Position Collapsible Rogers Super-Stoc

  • Full-Length Picatinny Top-Rail

  • 30-Round Magpul Pmag Included

Product Summary

Introduced in 2012, ATI's 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 American-made beauties perform flawlessly right out of the box at a price anyone can afford. The Mil-Sport M4 HD9 Carbine features a 9" Head Down KeyMod handguard that allows the rifle to be fitted by an enormous variety of aftermarket accessories. The 16" 4150cv M4 barrel is nitride treated and has a 1 in 9" twist. The buttstock is a Rogers Super-Stoc with six positions of adjustment. The rifle is optics-ready with a full-length Picatinny top-rail. The M4E1 upper receiver and the lower receiver are both constructed from 7015-T6 aluminum. A 30-round Magpul Pmag is included.

Model Mil-Sport M4 HD9 Carbine
Type Centerfire Rifle
Action Semi-Auto
Caliber .223 Rem./5.56 NATO
Barrel Length 16"
Weight 7.75 Lbs.
Sights Full-Length Picatinny Top Rail
Finish: Stock Matte Black Synthetic
Finish : Barrel & Receiver Matte Black/Anodized
Safety 2-Position Thumb
Capacity 1 x 30-Round Magazine