Davidson Defense Librarian’s Key 7.5-inch 1:16 .45 ACP AR-45 Freefloat M-Lok Handguard Pistol Assembled Upper Receiver, Northtac Ronin P-11 Red Dot Sight

The Librarian’s Key 7.5-inch 1:16 .45 ACP AR-45 Freefloat M-Lok Handguard Pistol Assembled Upper Receiver from Davidson Defense combines performance and durability for the discerning gunsmith. Featuring a 7.5-inch barrel crafted from 4150 CMV steel with a government profile and a 1:16 twist rate, this upper delivers reliability with every shot. The barrel is finished in a parkerized coating, providing resistance to wear and corrosion. Constructed from Billet 6061-T6 aluminum, the AR-15 upper receiver boasts a Type III hardcoat anodized finish for enhanced toughness.

A 7-inch M-LOK handguard and partial Picatinny rail facilitate attachment of accessories while maintaining a sleek profile. The upper is equipped with a KAK Industry .45 ACP compensator for effective recoil management. Complementing the setup is the Northtac Ronin P-11 red dot sight, featuring a 20mm objective lens and a 2 MOA dot reticle for precise targeting, ensuring consistent performance for those who value freedom in their shooting experience.