The Armalite AR-10 Competition is a semi-automatic .308 Winchester rifle built around a 16-inch heavy match-grade barrel and a 7075 T6 aluminum receiver. The Luth-AR MBA-1 adjustable stock lets you dial in length of pull, and the ambidextrous safety works for either hand. No iron sights are included — the receiver has two MIL-STD 1913 rail sections for mounting your own optics. Capacity is 25 rounds. 
 

Key Specifications 

• Caliber: .308 Win 
• Barrel Length: 16 inches 
• Capacity: 25 rounds 
• Weight: 8.2 lbs (131.2 oz) 
• Overall Length: 36.3 inches 
• Action Type: Semi-Automatic 
• Manufacturer: Armalite 
• Model Number: AR103GN13 
• Finish Color: Black 
   

Features 

The heavy match-grade barrel is the defining spec here — it's built for tight groups rather than light carry weight. The 7075 T6 aluminum receiver is durable and keeps overall weight at 8.2 lbs, which is on the heavier end for a 16-inch rifle but typical for this build style. The MBA-1 stock adjusts for different shooters and is comfortable for longer sessions. The optic-ready design with MIL-STD 1913 rails gives flexibility in what glass you run. 
 

Usage 

Directed at competitive shooters and range use where precision at distance matters. The .308 Win caliber also makes it a candidate for hunting larger game. Less suited for lightweight field carry given the 8.2 lb weight.

Owners of the Armalite AR-10 Comp in .308 Win generally rate it positively for accuracy and build quality, with a few consistent complaints.

Accuracy is the strongest point. The .308 caliber and match-grade barrel combination tends to produce tight groups, and owners at longer ranges are usually satisfied with the results. Build quality gets frequent praise too — the materials and fit are seen as solid, with the construction holding up to extended use.

Ergonomics come up positively. The controls are straightforward, and the adjustable stock lets shooters of different sizes get comfortable behind it. The AR-10 platform's customization potential is another draw — people appreciate how much you can modify it with aftermarket parts.

Recoil management gets good marks; the rifle stays manageable for follow-up shots.

On the critical side: weight is the most common complaint. At 8.2 lbs, it's heavier than some buyers expect, and that matters for anyone planning extended carry. Price generates pushback from buyers who feel the cost is high relative to competing options. Magazine compatibility occasionally comes up — some owners recommend sticking with OEM magazines to avoid fitment issues with aftermarket options. A few owners mention the rifle benefits from a break-in period before it settles into optimal performance.