- Pre-Owned Rifle in Excellent Condition - Looks New - No Rust Pitting or Scratches - This Gun has Seen Very Minimal Use - Comes with Original Factory Box No wear on any of the metal parts. Specifications: Manufacturer: Great Lake Firearms Model: GL-15 Serial Number: CO1164 Rifle Caliber: .223 WYLDE (Shoots both .223 REM and 5.56 NATO) Condition: AS NEW Metal Condition: EXCELLENT Wood Condition: EXCELLENT Bore Condition: EXCELLENT Action: Semi-Automatic Barrel: 16" Threaded Heavy Barrel (HBAR) Thread Pitch: 1/2" x 28 Feed Ramps: M4 Frame Material: Aluminum 7075 Gas System: 0.750 Gas Block (Black Oxide) and Carbine Gas Tube Grip: Mil-spec Polymer Handguard: 15.25 Aluminum 6061 Full picatinny rail Magazine Capacity: 30 Round Mags included: 1 Muzzle Brake: Included Designed to be 6 degrees forward wrench tightened w/o Loctite Trigger: Milspec 5.5-6 lb pull Upper: 7075 Upper Overall Length: 33.25 Weight: 6.8 lbs.