SADLAK A2 Front Sight Adjustment Tool Black Phosphate Small. 270 Adjustment tool 4-Prong round Knurled Body Manganese Phosphate with Laser Engraving. SADLAKs Front Sight Posts are milled in the USA by skilled lathe operators with years of experience delivering consistent quality and fit. Package Contents: SADLAK A2 Front Sight Adjustment Tool What firearm models does the manufacturer say SADLAK A2 Front Sight Adjustment Tool is compatible with? The manufacturer says that SADLAK A2 Front Sight Adjustment Tool is compatible with AR-15SADLAK 15-150021: A2 Front Sight Adjustment Tool Black Phosphate Small