The Midwest Industries 45 degree offset combat rifle sights for AR15 platform firearms and other continuous rail platforms offer convenient, reliable sights that are ready when you need them and completely out of the way when you don't. Constructed of lightweight 6061 aluminum, these sights are fully ambidextrous, and can be installed to the left or the right side of the firearm. MI Combat Rifle Offset Sight - Front Low Profile design doesn't obscure field of view Uses standard A2 front sight post Dual locking detent springs for added reliability and crisp positioning Constructed of ordnance grade phosphate finished steel Hardcoated 6061 aluminum base 1.5 MOA per click adjustments Weight 1.8oz MI Combat Rifle Offset Sight - Rear Low Profile fits under virtually all ocular scope lenses Intermediate aperture for long-range precision and close-range rapid engagement Dual locking detent springs for added reliability and crisp positioning Constructed of phosphate finished ordnance grade steel Hard coated 6061 aluminum base Rifle .5 MOA / Carbine .65 MOA click adjustments Weight 1.6oz MI A2 Front Sight Tool Precision machined from stress proof steel. Square notches that engage the sight with a precise fit to give the operator precise sight adjustment. A knurled non slip handle with a lanyard hole for a lifetime of convenient operation