Armalite M-15 Competition .223 Wylde/5.56 AR-15 - M153GN18

Armalite M-15 Competition AR-15 Rifle - .223 Wylde/5.56 NATO, 18" Barrel - Model M153GN18

ArmaLite
SKU:
120922933
|
UPC:
651984015247
|
MPN:
M153GN18
$1,784.73
$2,039.00
(You save $254.27 )
Current Stock:
Product Specifications
Capacity-Rounds:
30
Caliber-Gauge:
223 Remington / 5.56 NATO
Hand:
Right Hand
Barrel Length:
18"
Barrel Length Range:
18" to 18.99"
OAL:
39.50"- 40.50"
Trigger:
Timney Single-Stage
Weight:
7.80 lbs
Metal Finish Group:
Blued/Black
Action:
Semi-Auto
Muzzle:
Armalite Tunable Brake
Receiver Material:
7075-T6 Aluminum
Safety:
Ambidextrous
Stock Finish Group:
Black
Twist:
1:8"
Stock Description:
Adjustable Luth-AR MBA-1
Metal Finish:
Black Hardcoat Anodized/Black Phosphate
Sights:
Picatinny Rail
Weight Range:
7 lbs to 7.99 lbs
Barrel Description:
Stainless Steel
Product Overview

The Armalite M-15 Competition AR-15 rifle in .223 Wylde/5.56 NATO is built for shooters who demand precision and speed on the range. This 18-inch competition carbine combines a lightweight platform with match-grade components designed to deliver tight groups and reliable performance in timed and tactical disciplines. At 7.8 lbs, it's nimble enough to handle rapid target transitions without sacrificing the inherent stability you need when accuracy counts.

The heart of this rifle is a free-floating stainless steel barrel paired with an Armalite tunable muzzle brake—gear that lets you dial in performance to match your ammunition and shooting style. The adjustable gas block takes personalization further, letting you tune the rifle's cycling to run smoothly with the loads you're running. A low-profile handguard keeps the setup sleek and manageable, while the Timney single-stage trigger breaks at a crisp 3 pounds, giving you the predictability competitive shooters depend on.

The receiver is machined aluminum with a hard-coat black finish, paired with an MBA-1 adjustable stock that lets you dial in length of pull and comb height for your natural shooting position. This level of fit matters when you're stacking shots—the more the rifle fits your body, the faster you return to target. The rifle ships with one 30-round Magpul PMAG, ready to load and run. Whether you're new to competition or sharpening your skills at a local 3-gun match or precision rifle event, the M153GN18 gives you a platform built to win.

Key Features

  • Free-floating 18-inch stainless steel barrel with 1:8 twist for reliable 5.56 NATO and .223 Wylde ammunition
  • Armalite tunable muzzle brake allows shooter to optimize recoil impulse and performance
  • Adjustable gas block for individual rifle tuning and reliability across varying loads
  • Timney 3-pound single-stage trigger for quick, predictable break
  • MBA-1 adjustable stock with variable length of pull and comb height
  • Low-profile handguard for compact, ergonomic handling
  • Lightweight at 7.8 lbs for fast target transitions
  • Includes one 30-round Magpul PMAG

Specifications

Caliber.223 Wylde / 5.56 NATO
ActionSemi-Auto
Barrel Length18 inches
Barrel MaterialStainless Steel
Barrel Twist1:8
Muzzle DeviceArmalite Tunable Brake
Gas SystemAdjustable Gas Block
Magazine Capacity30 rounds
Upper ReceiverAluminum, Black
Lower ReceiverAluminum, Black
StockMBA-1 Adjustable Length-of-Pull & Comb, Black
TriggerTimney Single-Stage, 3 lb
Overall Length39.5–40.5 inches (varies with stock adjustment)
Weight7.8 lbs
Included Magazine(1) 30-round Magpul PMAG

Frequently Asked Questions

What ammunition does the Armalite M-15 Competition shoot?

The M153GN18 is chambered in .223 Wylde/5.56 NATO. This dual-chamber design safely fires both .223 Remington and 5.56 NATO ammunition, giving you flexibility in what you run through it.

Can I adjust this rifle to work with different ammunition or loading?

Yes. The adjustable gas block allows you to tune the rifle's performance to your specific ammunition, which helps optimize reliability and felt recoil whether you're shooting lighter or heavier loads.

What comes in the box?

The rifle ships with one 30-round Magpul PMAG magazine, ready to load and shoot.

Is the M-15 Competition good for 3-gun or precision rifle competition?

The free-floating barrel, Timney trigger, adjustable stock, and tunable muzzle brake are all features built for competitive shooting. The lightweight design and fast-handling 18-inch barrel make it well-suited to timed and tactical disciplines where speed and accuracy matter.

Additional Information

Firearm Shipments:

To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.

We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.

We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.

Email: [email protected]

  • Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
  • The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
  • The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
  • Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
  • Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
  • Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.