Introduced in 2015, the Adaptive Magwell (AM) by Lancer Systems is a bolt-on upgrade that expands the magwell opening of the standard AR-15 for easier drive of a magazine into the receiver and quicker reloads. Scoring 19 of 25 points possible the Adaptive Magwell provided excellent comfort for its flared opening during reloads, and its good durability and overall function. Read the details in our full review…more>>>