WD-40 is neither a cleaner nor lubricant. Use Throttle Body cleaner spray to remove any old grease on the door latch and door handle/Lock mechanisms. Use a light oil to lubricate everything. Break Free CLP gun oil is a Cleaner Lubricant Product and works great for door lock/latches.
If the whole mess is too rusty, stop by the junkyard and get a replacement.
According to the National Shooting Sports Foundation, AR-15 sporting rifles account for nearly 20% of all U.S. firearms sales.
Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......
Originally Posted by Ronald W. Reagan: Government is not the solution to our problem; Government is the problem.