Sku: RD3-029+HM21(plate for Beretta APX) This combo includes an ADE RD3-029 Trumpet red dot sight, a mounting plate for non-optic ready Beretta APX A1 Full Size, APX A1 Compact, APX Full Size, APX Compact and a standard picatinny mount. The plate replaces the factory rear sight and fits pistols with a dovetail only. This plate does not fit optic-ready versions with a factory optic cut such as APX A1 Optic Ready, APX A1 Carry or APX Carry. The ADE Trumpet PRO (RD3-029 ) features a 4 MOA red dot, built to seamlessly fit any pistol mounting plate, slide, or cut compatible with popular red dot footprints, including RMR/SRO and Holosun 407C/507C/508T. Equipped with a Motion Activated System, the Trumpet automatically enters sleep mode after five minutes of inactivity, conserving battery life. Upon detecting any motion or vibration, the red dot illumination instantly reactivates at the previous brightness level. Users can also manually disable this feature by turning off the red dot power. The Trumpet PRO boasts a side-loading battery tray, eliminating the need to remove the sight for battery changes. With a battery life of up to 20,000 hours, the sight offers 7 brightness settings, including one designed specifically for use with night vision. It operates with a single CR1632 battery. The Trumpet PRO boasts a side-loading battery tray, eliminating the need to remove the sight for battery changes. With a battery life of up to 20,000 hours, the sight offers 7 brightness settings, including one designed specifically for use with night vision. It operates with a single CR1632 battery. Although it's feasible to install the optic on a handgun without the assistance of a gunsmith, we highly recommend seeking the expertise of a professional for the installation process. It's essential to note that unprofessional installations, such as improper torque application, can lead to issues like loose screws, an inability to hold zero, damage to the firearm or optic, and even pose a risk of personal injury. Payments are accepted through Paypal. We ship through USPS First Class Mail from Oregon, west part of the country should receive in 1-3 days,middle part and east part of the country should receive in 3-6 days!NO INTERNATIONAL SHIPPING! We promise our best quality and the lowest price for our customers, if the item is not as the description in the listing page, we will issue a exchange or full refund. if the item is the same as the description, we willl charge a 15% restocking fee. We are a new seller on Ebay, all our prices are really low compare to others, because we want to earn feedbacks. Please understand our feedback will be left once after we have received feedback from buyer. Our goal is to place a profit margin of $1 ~ $3 per item and sell in volume. As such, the more you save the more we make. While the others are selling 1 item, we are selling 10 ~ 20 items due to our price reduction. Please use the "Ask Seller A Question" button. Please allow up to 24 hours for a response. Usually the buyer will get response in 6 hours. Customer Satisfaction • Please contact us right away (via eBay Messages) if you have any concerns, questions or issues about your purchase – and before you leave feedback. • If you give us the chance, we will make every effort to make it right for you! • We strive for five stars from you in feedback – and work hard to earn it. • Customer satisfaction is very important to us and our goal is to have every customer want to be a repeat customer.