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Internet # 323410174

Model # GMB505BAM

Patriot Black, Medium, Plastic, Post Mount Mailbox

$25.93
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  • Durable, rust-proof, polypropylene plastic construction
  • Made in USA and backed by 5-year warranty
  • Medium capacity accommodates average volume mail deliveries
  • View More Details

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Product Details

About This Product

The Patriot Medium mailbox is your trusty daily sidekick, ready to take on the elements without batting a flag. Made from rustproof polypropylene, this plastic mailbox stands strong through rain, snow, sun, and whatever else the weather decides to throw your way. Its ribbed top and textured sides give it a little extra style, while the medium size easily fits letters, magazines, padded envelopes, and small packages. It's the perfect blend of practical and personality. If you're shopping for a reliable curbside mailbox that's ready to go the distance, the Patriot is a smart pick. It arrives fully assembled, mounts easily to your post (hardware sold separately), and yes, it's USPS approved.

Highlights

  • Made from durable plastic, this mail box for outside stands up to rain, snow, and humidity without ever rusting
  • Medium size offers plenty of space for daily mail, magazines, and small packages; perfect for most curbside mail boxes for outside
  • Mailbox is USPS approved as required for all curbside delivery by U.S. Mail carriers for smooth, uninterrupted service
  • Fully assembled and ready to mount; Note mounting hardware comes with all Architectural Mailboxes' compatible posts, not the mail box
  • Made to mount effortlessly on all Architectural Mailboxes posts marked with letter E
  • Embossed area on the outside mailbox door and sides makes adding house numbers simple and stylish for quick identification
  • Iconic, timeless post mount mailbox style complements both new and historic homes, making it a versatile choice for any setting
  • Thoughtfully engineered with a focus on durability, function, and style
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 323410174

Model # GMB505BAM

Specifications

Dimensions: H 9.78 in, W 7.95 in, D 20.3 in

Dimensions

Assembled Depth (in.)

20.3 in

Assembled Height (in.)

9.78 in

Assembled Width (in.)

7.95 in

Details

Access Type

Front Only

Assembly Required

No

Color

Black

Color Family

Blacks

Features

Corrosion Resistant, Fade Resistant, Outgoing Mail Indicator

Hardware Color Family

Black

Included

Flags, Mailbox

Mailbox Capacity (cu. in.)

1000

Mailbox Size

Medium

Mailbox Style

T2

Material

Plastic

Mount Type

Post Mount

Product Weight (lb.)

2.5 lb

Returnable

90-Day

Security

Non-Locking

Warranty / Certifications

Manufacturer Warranty

5 Year Limited

U.S. Postmaster General Approved

Yes

Questions & Answers

Is this code E mailbox compatible with the HighwoodHazleton Recycled Plastic Mailbox Post?
ByMar 29, 2026
1 Answer | 
Answer This Question

Thank you for your interest in our products. We're not familiar with the Highwood Hazelton Recycled plastic mailbox post. Architectural Patriot large plastic post mount mailbox is designed to fit our Patriot mailbox post only.

By|Mar 30, 2026


    Hi, Is this mailbox made of polypropylene produced from petroleum or polypropylene produced from soybeans or some other plant source (bio-based polypropylene)?
    ByJan 23, 2026
    1 Answer | 
    Answer This Question

    Thank you for your interest in our products. The Patriot is made of High-Density polypropylene plastic blow molding grade. Do not know if it is made from petroleum or soybeans or any other plant source. (bio-based polypropylene)

    By|Jan 26, 2026


      How to attach the yellow flag
      ByJan 12, 2026
      1 Answer | 
      Answer This Question

      Thank you for your interest in our products. The point on the flag sits into the Retainer ring. If customer need a diagram showing how to install contact Customer Service 1-800-647-7063.

      By|Jan 12, 2026


        Is it PMG Seal of Approval?
        ByJun 15, 2024
        1 Answer | 
        Answer This Question

        Thank you for your interest in our products. Yes, the Patriot large post mount mailbox is Postmaster Approved.

        By|Jun 17, 2024


          It says match code is E. Can I mount it on the Whitley plastic sleeve that says use with match code A, B, or C?
          ByJun 15, 2024
          1 Answer | 
          Answer This Question

          Thank you for your interest in our products. No. the Patriot large post mount mailbox is not compatible with the Whitley plastic post.

          By|Jun 17, 2024


            Can mail indicates be moved to the other side?
            ByMay 27, 2024
            1 Answer | 
            Answer This Question

            Thank you for your interest in our products. Yes, the mail indicator can be moved to the other side.

            By|Mar 7, 2026

              (2)

              I need to change the side of the alert flag. I can't believe it cannot be changed. Someone please advise.
              ByAug 26, 2023
              1 Answer | 
              Answer This Question

              Thank you for your interest in our products. Yes, it can be changed to the other side.

              By|May 18, 2026

                (4)

                Does this mailbox have a door at each end?
                ByMay 7, 2023
                1 Answer | 
                Answer This Question

                No it doesn't

                By|Jun 3, 2023


                  Viewing 1-8 of 34

                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 501 reviews
                  • 92% recommend this product
                  Filter by:
                  Showing 1-10 of 501 reviews
                  Easy to install. Definitely big. But a little flimsy.
                  Easy to install. Definitely big. But a little flimsy.
                  by
                  • DIY
                  • Verified Purchase
                  • Recommended
                  1 found this review helpful
                  This mailbox easily mounted to my Gibraltar post. What I liked the most is that I can see the pop...
                  This mailbox easily mounted to my Gibraltar post. What I liked the most is that I can see the pop up flag from my front window to know when the postman had arrived. Also liked how deep this mailbox is so that I can also get mid size packages.
                  by
                  • Verified Purchase
                  • Recommended
                  I love our new mailbox. The only downfall is the plastic. I love the yellow flag to indicate mail...
                  I love our new mailbox. The only downfall is the plastic. I love the yellow flag to indicate mail has arrived. I love the water proof which is why I went with plastic, it wont rust. The mailbox and gold letters came from home depot. the post is from Montgomery Wards
                  by
                    • Recommended
                    1 found this review helpful
                    I just replaced the exact same mailbox that I bought and installed over ten years ago - maybe 15 ...
                    I just replaced the exact same mailbox that I bought and installed over ten years ago - maybe 15 years. This is an inexpensive mailbox that is wide enough for 9x12 envelopes and other large packages to fit and lie flat. The red flag is to indicate you have mail in the box for the postman to pick up. The yellow flag pops up when the door has been opened, meaning you have mail. You can see it from a distance. Mounts very easily to a piece of 1x6 lumber that is 17" long (you add the lumber). That is, cut a piece of 1x6 yellow pine 17" long. Screw that to the top of your mailbox post, and then you can set this box over that board. There are 4 holes on each side of the lip under this box. Use a 1-1/2" or 2" drywall screw in each hole, a total of 8 screws, I used #6 1-1/2" fine thread black drywall screws, and they held up for a decade or more no problem. Home Depot will cut that board for you if you don't have a saw handy. If you buy white or yellow pine, you can probably even drive the screws in by hand. You could even use nails, though screws are more secure. I recommend painting the board black with some spray paint just so it is protected a bit more from the elements. It has held up very well in the Texas sun over many summers, and I recommend it completely. I was thrilled that they still made the exact same model.
                    by
                    • Verified Purchase
                    • Recommended
                    8 found this review helpful
                    Easily mounted on pressure treated 2x4 (has slot in the bottom that fits perfectly). Bought two,...
                    Easily mounted on pressure treated 2x4 (has slot in the bottom that fits perfectly). Bought two, mounted side by side on a single post mount using a third 2x4 as a cross beam / H configuration. Looks great, fits large packages, and I even mounted a battery powered door sensor that connects to my automation network and sends me a text on my phone whenever the front flap is opened by the mail service (and triggers my camera to record the event)
                    by
                    • Verified Purchase
                    • Recommended
                    A school bus backed into our old mailbox during mid Sept. 2019. At the end of Sept., we replaced...
                    A school bus backed into our old mailbox during mid Sept. 2019. At the end of Sept., we replaced it with a Gibraltar (material plastic/color black). Home Depot has many mailboxes to choose from, but the Gibraltar meets our needs & looks great. Prior to installing the Gibraltar, we painted it & the existing vinyl post cover brown so that they would match. Home Depot has many colors of spray paint to choose from, so color choice was no problem. We wanted a hard plastic mailbox because the mailbox is located next to our grandson's basketball goal & plastic mailboxes do not dent when hit with a basketball. The mailbox was under $30, easy to paint, easy to assemble, & easy to install. This mailbox is larger than our last one, so I'm sure that will make mail deliveries more convenient. The red flag is bigger, too, & that helps us to see it in the up or down position from our front door. Concerning my dislikes... I dislike the thought of a school bus destroying our old mailbox, but replacing it with a Gibraltar from Home Depot was a Win Win. The School Board is going to reimburse us for the cost of the Gibraltar. Lastly, note in our attached picture that our cat likes our new mailbox, too. He left his paw prints all over it. :-) Thank you.
                    by
                    • Verified Purchase
                    • Recommended
                    2 found this review helpful
                    Reasonable price, works just fine.
                    Reasonable price, works just fine.
                    by
                    • Verified Purchase
                    • Recommended
                    1 found this review helpful
                    Easy to install, works very well with the Gibraltar cedar drive-in mailbox post - no mounting pla...
                    Easy to install, works very well with the Gibraltar cedar drive-in mailbox post - no mounting plate needed. Our postal carrier said she likes our box much better- easier to get to and smoother. We mounted it about 6" higher than our old mailbox. Note that the yellow "mail is here" flag can be assembled on either side of the mailbox. That's a key feature for us- we needed it on the left side of the box, but the photo shows it on the right. Turns out, it comes disassembled, and you just snap it on to either side, then snap a cover-cap on the opposing side. The whole thing went together very easily.
                    by
                    • DIY
                    • Recommended
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    This customer chose to rate the product and not provide text.
                    by
                    Showing 1-10 of 501 reviews

                    Compare Key Features

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                    Product Snapshot

                    Ideal for homeowners needing a medium-capacity, weather-resistant mailbox with a classic design. Easy installation with pre-drilled holes.
                    Great for homeowners needing a large, durable plastic mailbox. Easy assembly and USPS-approved.
                    Great for homeowners looking for a medium-sized mailbox, making mail retrieval easier and more efficient.
                    Built for lasting durability, the rust-proof aluminum Admiral mailbox boasts a medium capacity and weather-resistant design. Ideal for homeowners seeking a reliable and stylish mailbox.

                    Capacity

                    1000 cu. in.
                    1097 cu. in.
                    800 cu. in.
                    800 cu. in.

                    Dimensions

                    H 9.78 in. x W 7.95 in. x D 20.3 in.
                    H 11.3 in. x W 8.5 in. x D 19.5 in.
                    H 8.9 in. x W 6.8 in. x D 20.1 in.
                    H 9.46 in. x W 6.94 in. x D 20.8 in.

                    Security Features

                    Weather Resistance

                    Material

                    Plastic
                    Plastic
                    Galvanized Steel
                    Aluminum