Description
Army Custom 5.1 Costa Compensator Hi-Capa Series Part – Baseplate (R501-A-90)
This is a genuine replacement baseplate for the Army Armament (Army Custom) 5.1 Costa Compensator Hi-Capa, part number R501-A-90. The R501 Costa Comp is Army Armament’s full metal Hi-Capa gas blowback pistol with an aggressive compensator, and this is one of the official spare parts for it.
Baseplates take a lot of punishment. Magazines are dropped during fast reloads, knocked against barricades and stood on in the field, and the baseplate at the bottom of the magazine is usually the first part to get damaged. A factory replacement lets you bring a magazine back to full working order and keep your pistol looking as it should.
Why use original parts
Army Armament designs its parts to fit its own pistols, so an original part should go straight in without the filing, shimming or guesswork that can come with generic parts. Using the right part also helps keep the magazine secure and gas-tight.
Many players also keep a few spares in their kit, so that a broken part can be replaced quickly between games instead of putting a magazine out of action.
Fitting
Make sure the magazine is completely empty of gas and BBs before you start. Note how the old part is fitted, and take care with any springs or retaining parts as you remove it. Fit the new baseplate the same way, check it is fully seated and secure, then refill and test the magazine for leaks.
Key features
- Genuine Army Armament part
- Part number R501-A-90
- For the 5.1 Costa Compensator Hi-Capa (R501)
- Replaces a worn or damaged baseplate
- Restores a magazine to full working order
- Handy kit-bag spare
Compatibility
Designed for the Army Armament 5.1 Costa Compensator Hi-Capa series. Hi-Capa pistols from different makers often look alike but parts are not always interchangeable, so please check your pistol’s model and compare with the product images before ordering.
Care and maintenance
Keep magazines clean, and wipe away dirt and grit, especially around the baseplate and fill valve. Put a drop of silicone oil on the magazine’s seals and valves from time to time, and store magazines with a small amount of gas in them to keep the seals in good condition.
Avoid dropping magazines onto hard surfaces where possible, and check baseplates and fixings regularly for cracks or looseness.
Who is it for?
This part is for owners of the Army Armament 5.1 Costa Compensator Hi-Capa who need to replace a damaged baseplate or want a spare, and for technicians maintaining these pistols.
Please note: This is a single spare part; the pistol and magazine are not included.
