Description
The Beretta EUS03063 is an optic adapter plate from Beretta (model APX A1 Carry), listed for Beretta APX A1 Carry with a Holosun K Footprint interface.
Beretta EUS03063 Overview
An adapter plate lets a pistol red dot with one footprint mount to a slide cut for another, so you can run the optic you want on the pistol you own.
The plate must match both the slide cut and the optic footprint exactly, including screw size, so double check both before you order.
Fit and Compatibility
The distributor lists fit as Beretta APX A1 Carry. Mount type: Holosun K Footprint. Height: 0.80″. Confirm the exact firearm model, receiver or slide cut, and the optic you plan to run before ordering, because mounting parts are made to precise dimensions and a near miss does not fit.
Installation Tips
Degrease the screws and mating surfaces, then snug the fasteners in an even, alternating pattern. Use a torque wrench and follow the maker’s inch-pound values; overtightening can crush a scope tube or strip threads, while undertightening lets the optic walk under recoil. A drop of thread locker on base screws, but not ring cap screws unless the maker says so, keeps everything in place.
Build and Materials
finished in black, with a listed weight of 0.10 oz and a length of 3.70″. Machined aluminum and steel parts hold tolerances well, while polymer parts save weight and resist corrosion.
Holding Zero
The real test of any mount is return to zero: the optic should come off and go back on, or ride through hundreds of rounds, without the point of impact wandering. Rigid materials, precise machining and correct torque all contribute. Witness marks with a paint pen make it easy to spot movement at a glance.
Honest Limitations
No single mounting part fits every firearm and optic. Height, eye relief, footprint and rail spacing all vary, and a part that is perfect for one setup can be wrong for another. Budget mounts can work well on rimfires and light recoiling rifles, but heavy recoil and duty use reward premium machining.
Care and Storage
Wipe off dirt and moisture after a wet hunt with a microfiber cloth, keep a small set of the correct bits or wrenches in your range bag, and check fasteners at the start of each season. A light coat of oil on steel parts prevents rust, while anodized aluminum only needs to be kept clean. Protect the optic from dust and rain when the rifle is stored or cased.
Before You Buy
Match the part to your exact firearm and optic, check the height and size listed above, and contact us with the model of your rifle, pistol or scope if you are unsure. Mounting parts and optic accessories are not firearms and ship without an FFL transfer.
Specifications
- Brand: Beretta
- Model: APX A1 Carry
- Manufacturer number: EUS03063
- Type: optic adapter plate
- Fits: Beretta APX A1 Carry
- Mount type: Holosun K Footprint
- Height: 0.80″
- Finish: Black
- Weight: 0.10 oz
- Length: 3.70″
- UPC: 82442952116
Who It Is For
The Beretta EUS03063 is a great fit for pistol owners who want to run a different red dot footprint.
Buy the Beretta EUS03063 at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Beretta EUS03063 online, or browse our scope mounting and optics categories for more. For factory details, visit Beretta.
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