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With manufacturing all our parts here at Anderson Manufacturing we are able to offer you Affordable, American Made, Quality for Less! The EXT Carbine Rifle is a high quality rifle for a low cost. Just add an optic of your choice and you are ready to take on range day!


  • ACTION:  Semi-Automatic
  • CALIBER:.223 Wylde (compatible with 5.56) NATO
  • FINISH: Black Anodize
  • WEIGHT: 6.3lbs
  • OVERALL LENGTH: 32 ½”, 36 1/8” Extended
  • BARREL LENGTH: 16″ M4 Contour
  • RIFLING: 1:8
  • RECEIVERS: 7075-T6 Forged
  • BCG: AM-15 Bolt Carrier Group – .223
  • CHARGING HANDLE: Standard Charging Handle
  • GAS BLOCK: AM-15 Gas Block, Low Profile – .750
  • FLASH HIDER: Knight Stalker
  • BUTT STOCK: Magpul MOE
  • TREATMENT: Available in RF85 & Non RF85
  • ADDITIONAL SPECS/NOTES: Barrel is compatible with .223/5.56 Ammunition.
TreatmentChoose an optionNon-RF85RF85 Treated


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UPC: N/ASKU: N/ACategory: AM15 Complete FirearmTags: AM-15, ar-15, AR15, m4 ar-15, m4 rifle

  • Description
  • Additional information


With manufacturing all our parts here at Anderson Manufacturing we are able to offer you Affordable, American Made, Quality for Less! The EXT Carbine Rifle is a high quality rifle for a low cost. Just add an optic of your choice and you are ready to take on range day!

This Rifle is assembled with the highest of quality Anderson Manufacturing machined parts. Built by Anderson Manufacturing Armorers with the following parts:  AM-15 Stripped Lower Receiver; Magpul Lower Parts Kit – Stainless Steel; AM-15 Buttstock – Magpul MOE;  AM-15 Buffer Tube, 6 Position – Carbine Length;  AM-15 Buffer Tube Castle Nut;  AM-15 Buffer, Carbine Length;  AM-15 Buffer Spring – Carbine Length;  AM-15 Receiver End Plate – Ambi; .223 Wylde (compatible with 5.56) 16″ Barrel – Carbine Length; AM-15 Stripped Upper Receiver; AM-15 Bold Carrier Group, 5.56; AM-15 Charging Handle – Standard; AM-15 Gas Block, Low Profile – .750; AM-15 Gas Tube – Carbine Length; Flash Hider, Knight Stalker – 5.56/.223; AM-15 Upper Parts Kit; AM-15 Free Float Kit, EXT – 9″.

The AM-15 Lower Receiver is American made with superior quality for less! Our lower Receivers are CNC machined from a high-strength, 7075 T6 aluminum forging for reliable performance and outstanding durability. Machined to Military Specifications & Standards and marked “Multi-Cal” to be used with multiple calibers on the AR-15 platform. This Lower Receiver comes in type III black hard anodize, and an Open Trigger.

The Magpul Lower Parts Kit for AM-15 includes the following: Bolt Catch (1), Bolt Catch Plunger (1), Bolt Catch Roll Pin (1), Bolt Catch Spring (1), Buffer Retainer (1), Buffer Retainer Spring (1), Magazine Catch (1), Magazine Catch Button (1), Magazine Catch Spring (1), Pivot Pin (1), Pivot/Takedown Pin Detent (2), Pivot/Takedown Pin Detent Spring (2), Safety Selector (1), Safety Selector Detent (1), Safety Selector Detent Spring (1), Takedown Pin (1), Trigger Guard (1), Trigger Guard Roll Pin (1), Magpul MOE Pistol Grip (1), Pistol Grip Lock Washer (1), Pistol Grip Screw (1), Stainless Steel Trigger (1), Stainless Steel Hammer (1), Trigger/Hammer Pins (2)Disconnect (1), Disconnect Spring (1), Trigger Spring (1), Hammer Spring (1).

The MOE Stock – Mil-Spec Model (Magpul Original Equipment) is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec sized receiver extension tubes. Designed for light, fast action the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.

The Mil-Spec Model includes a standard 0.30″ thick rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

The 6 Position Buffer Tube is Finished in Black Anodize, and made from 7075 T6 Aluminum.

The buffer tube castle nut is the standard AR-15 buffer tube nut.

The Carbine Length, Standard Buffer & Music Wire Type Buffer Spring

The Am-15 Mil Spec, Ambidextrous Receiver End Plate has two Sling Holes and comes with a Parkerized Finish.

The AM-15 Stripped Upper Receiver is machined from 7075 T6 Aluminum forging. Featuring M4 feed ramps, this upper receiver is machined to Military Specifications & Standards and can be used with multiple calibers on the AR-15 platform. This upper receiver comes in type III hard coat black anodize.

The AM-15 Upper Receiver Parts Kit includes the following: Ejection Port Cover Assembly, and Forward Assist Assembly.

The 16″ .223 Wylde (compatible with 5.56) NATO M4 barrel is made from 4150 Chrome Moly Vanadium Steel with a Parkerized finish. Featuring a carbine length gas system with a .750″ gas port and a 1:8 twist, this barrel provides top accuracy and precision for your rifle.

The Knight Stalker Flash Hider reduces barrel rise for fast accurate follow up shots, and significantly cuts flash down for fast target acquisition.

The AM-15 Bolt Carrier Group – .223/5.56 Complete Bolt and Carrier Group is Phosphate coated and Chrome Lined. The Carrier is made from 8620 steel, and the Bolt is made from 9310 steel and Phosphate coated,  MPI Tested. The 223 Bolt and Bolt Carrier Assembly comes complete with Cam Pin, Firing Pin and Firing Pin Retainer.

The AM-15 Charging handle is the standard AR-15 charging handle.

The AM-15 Low Profile Gas Block Assembly is intended to fit underneath free floats. This Gas Block is made from 6061 T6 aluminum and is compatible with a .750 dia Barrel. The gas block is paired with an AM-15 Carbine Length Gas Tube with a length of 9.75″, and is made from 304 Stainless Steel.

The EXT Carbine Length Free Float Kit provides ultimate strength and durability while also providing comfort and functionality. The Length of this free float is 9.4″ Featuring continuous top picatinny rail and bottom and sides designed to accept picatinny rails. Also featuring integral sling swivel attachment points. Made from 6061-T6 Aluminum, and finished to Mil Spec with type III Hard Coat Anodizing. This Kit includes a steel barrel nut (1 ¼”-18 thread), 3 allen head bolts, and two quick disconnects for forearm. The EXT series comes in Pistol, Carbine, Mid, and Rifle Lengths allowing it to fit the needs of your AR-15 build. Will need the Anderson’s AM15 Barrel Nut Wrench.


This Rifle is offered in our proprietary RF85 treatment. RF85 means, 85% Less Friction and 23% Faster Action! Your barrel will never need oiling and cleans up with just soap & water! 

AM-15 EXT, .223/5.56 16″ – M4

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