The Springfield Armory SA-16 A2 is a semi-automatic rifle chambered in 5.56x45mm NATO (.223 Rem), with a 20-inch chrome-lined barrel and 30-round capacity. It weighs 7.5 lbs and measures 39.5 inches overall. Finish is black anodized. Sights are A2 front and adjustable dual-aperture rear. The muzzle has a flash hider. 
 

Key Specifications: 

• Caliber: 5.56x45mm NATO (.223 Rem) 
• Action: Semi-Auto 
• Capacity: 30 Rounds 
• Barrel Length: 20 inches 
• Overall Length: 39.5 inches 
• Weight: 7.5 lbs. 
• Sights: A2 Front & Rear Adjustable Sights (PEEP/APERTURE) 
• Muzzle Type: Flash Hider 
• Finish: Black Anodized 
   

Detailed Features: 

The 20-inch chrome-lined barrel improves durability and reduces fouling compared to unlined barrels. The direct impingement gas system cycles consistently. The fixed A2 stock has a trapdoor storage compartment. The dual aperture rear sight adjusts for windage and elevation. Upper and lower receivers are forged 7075-T6 aluminum with Type III hardcoat anodizing. 
 

Usage: 

The A2 configuration (fixed stock, 20-inch barrel, A2 sights) is the traditional full-length AR-15 setup that predates the carbine variants. The longer barrel increases velocity compared to a 16-inch carbine, which is meaningful for 5.56 terminal performance at distance. This is a good option for shooters who prefer iron sights and a full-length platform for range or hunting use.

The SA-16 A2 draws buyers who specifically want the traditional full-length A2 configuration rather than a carbine. Owners appreciate the 20-inch barrel for the velocity it extracts from 5.56, and the chrome-lined bore is mentioned positively for ease of cleaning and longevity.

Accuracy feedback is solid. The A2 adjustable rear sight is well regarded by iron-sight shooters, and users report consistent groups at 100 yards and beyond. Build quality, forged aluminum receivers with Type III anodizing, is consistently praised.

The A2 fixed stock is either liked or disliked depending on personal preference; it's a traditional configuration that doesn't suit everyone's ergonomics. Weight at 7.5 lbs is heavier than carbines, which comes up in discussions. Overall sentiment is positive among shooters who know what they're buying.