You Will Not Believe These Things About Beretta Firearms
The Beretta doesn't have an over-travel adjustment as a stock option. Having an over-travel stop is a big deal for performance. As a result, you shall need to buy a steel trigger to replace the plastic one (costs about $15). Drill a hole within the trigger as high up as is possible, tap it out for 6 x 32 tpi and install a set screw so that you have an adjustable over-travel stop.
The M9 Beretta 9mm (head to snsc.outer.jhuapl.edu) is one of the most well know pistols in the world, entering U.S. military service within the mid 80s. As a result of its quality craftsmanship and high durability, it has the ability to fire under extreme heat and cold as well as after being buried in mud, sand, snow and salt water. Add in a high capacity magazine together with a low recoil, it's easy to find out why the M9 quickly became the standard sidearm for military personnel.
To be accurate for bullseye pistol shooting, the barrel must be match grade. Bar-Sto and KKM Precision both make good barrels for the Beretta, as well as you can get good results from just using a drop-in barrel. Contrary to common belief, there's absolutely no need to work with a bushing at the front of the barrel to improve lock-up on a Beretta. The barrel locks up at the back against the slide using the locking block that is attached to the barrel, so it's crucial that your locking block is tight and in good condition. If you're installing a barrel that needs fitting, you will be removing material from the back of the barrel until the gun will go into battery reliably. Ensure and apply Dykem or other layout fluid between removing material to find out where the contact points are. You want as much contact as it can be between the back of the barrel as well as the breech face on the slide. Some barrels (Bar-Sto) have extra material in addition to the back of the barrel and several of this has to be removed slowly. The point of the extra material on these barrels is to get a tighter lockup with more contact surface, plus center the back of the barrel vertically on the breech face.
The UHC M9 features a spring pistol firing mechanism that enables its users to shoot as fast as they can cock the gun. This is a great pistol in the event that you are just beginning to get into Airsoft or if perhaps you just want to shoot some cans within your basement or backyard. You definitely will enjoy hours of fun when you take down your targets with a deadly aim. In contrast, for anyone who is already an avid Airsoft enthusiast, then the UHC M9 is a must have for your collection. In almost any case, this pistol delivers great performance at a very low price.
To improve lockup, some guns have set screws installed running up under the frame rails through the back of the barrel to give extra contact points while everything is locked in battery.
To improve service life, some gun builders modify the frame rails and replace sections of the aluminum rails with pieces of steel, affixed with screws. This is only necessary if you're a top level competitor and need that extra 2% performance that includes a super tight frame-to-slide fit, plus the durability of steel on steel vs steel on aluminum. There are no "kits" for doing this type of work, so you will have to have this sort of work produced by someone who knows what they're doing. This sort of improvement of slide-to-frame fit is similar in nature to the "Accu Rail" improvement that used to be done on 1911 style pistols.
Finally, sights. If you replace the rear sight with the over-sized adjustable sight, it's common to need to trim down the very best of the firing pin blocker lifter to keep it from hitting the bottom of the sight. Additionally you will have to get a taller front sight. The front sight may be welded on (less common) or you may get one that slips over the stock front sight and pins in place (more common) or you can get the slide milled out with a dovetail (uncommon). Beretta makes an adjustable rear sight that allows you to keep the stock front sight and not have to modify the blocker lifter, but it's more low-profile than most competitive shooters are going to want.
