• CARABINA BLACK BUNKER BM8 & Cal. 4.5mm - Black
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REF: 789625516003

BLACK BUNKER BM8 AIR RIFLE

Black Bunker

Folding air rifle BLACK BUNKER BM8, 4.5mm caliber with spring-piston system. Compact and rugged, ideal for transport, survival or recreational shooting. Features internal storage and accessory compatibility.
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    CARABINA BLACK BUNKER BM8 & Cal. 4.5mm - Black

    BLACK BUNKER BM8 AIR RIFLE
    299,00€
    Tax included. Shipping calculated at checkout.
    Delivery in 3-5 working days

    Features BLACK BUNKER BM8 AIR RIFLE

    General data

    BLACK BUNKER BM8 4.5 mm Folding Air Rifle – Full Description



    The BLACK BUNKER BM8 4.5 mm is a spring-piston air rifle designed for portability, durability and versatility. Its fully folding design makes it ideal for outdoor activities, survival situations or recreational shooting in tight spaces.

    Built with high-grade materials and engineered to last, this rifle combines modular innovation with reliable performance. It folds in seconds into a compact briefcase-style unit, with a secure magnetic lock for discreet transport.

    Technical specifications

    Type: Spring-piston air rifle

    Caliber: 4.5 mm (.177)

    Power source: Spring-piston

    Barrel: Rifled steel

    Velocity: +-300 m/s

    Total length (open): 820 mm

    Folded length: 390 mm

    Weight: 3.4 kg

    Body: aluminum

    Finish: Cerakote

    Safety: Manual

    Stock: Folding with internal compartment

    Grip: Interchangeable AR-style

    Picatinny rails: Top and bottom

    Compatibility: M-LOK and AR components

    Internal storage: Up to 2 empty AR15 magazines or tools

    Locking system: Magnetic with mechanical catch

    Optics mount: Top Picatinny rail

    Bottom mount: Picatinny for bipod or accessories

    Key advantages

    Compact briefcase-style folding design

    Durable aluminum with Cerakote finish

    Ideal for survival, recreational use or training

    Functional internal storage

    Modular and customizable

    Tactical yet practical design

    Best for

    Recreational shooting in confined spaces

    Survival or bushcraft use

    Users looking for a compact and robust air rifle

    • Length

      106cm

    • Weight

      3.4 kg

    • Cal. 4.5 mm muzzle velocity

      300 m/s

    • Sport

      Target / Match

    • Rail Type

      Picatinny / weaver

    • Mechanism

      Pistón-gas

    • Pellets type

      Balin plomo

    Is the Black Bunker BM8 an air rifle or a firearm?

    The BM8 is a high-powered break-barrel air rifle featuring a gas ram system.
    It fires caliber (4.5 mm) pellets using compressed air generated by cocking the barrel — not gunpowder or cartridges.
    In Spain, it’s classified as a Category 4 air weapon (under 24.2 joules), and can be purchased without a firearms license, under declaration.

    What does “foldable” mean and how does the BM8 folding mechanism work?

    The Black Bunker BM8 is a unique bullpup-style folding air rifle designed for portability and tactical use.

    It features a reinforced hinge mechanism that allows you to:

    Fold the rifle in half quickly and easily.

    Store or carry it discreetly in a backpack or vehicle.

    Lock it securely in the extended position for stable, precise shooting.

    It’s one of the very few air rifles on the market with this level of mobility and modularity.

    What kind of power and accuracy does the BM8 deliver in real conditions?

    Thanks to its gas piston powerplant and rifled barrel (threaded 1/2 UNF for moderators), the BM8 offers:

    Approx. 20–24 joules of muzzle energy, ideal for plinking, reactive targets and small pest control.

    A smooth, low-vibration shooting cycle, with quick follow-up shots.

    Effective accuracy at 20–30 meters, especially when equipped with a scope via its Picatinny rail.

    Who is the BM8 designed for? Is it comfortable to shoot?

    The Black Bunker BM8 is great for:

    Enthusiasts of tactical-style or survival air rifles.

    Shooters looking for a powerful, portable, and self-contained springer — no PCP tanks or compressors needed.

    Anyone who prefers a balanced bullpup configuration that’s easy to handle and transport.

    Despite its rugged look, the BM8 is lightweight, well-balanced, and comfortable for extended use.

    • Items with warranty and quick returns

      We distribute the best items and we trust that we have quality guarantees...

      Our experience supports us and we accompany our clients for years. If an item does not convince you, we make quick returns.

      Know more

    • Secure payment method

      Payment methods are Visa, Paypal and bank transfer.

      Our mission is to deliver your rifle to your home in the shortest time possible and with the best quality and price.

    • Certain items may require additional documentation.

      We ship worldwide, which is why in certain countries the distribution of weapons may require additional information.

      Please check our page where we inform you of the requirements for the sale of weapons by country.

    Why buy at Carbin

    Your orders always on time

    Immediate shipment of our stock

    The first is your security

    100% safe and convenient payment methods

    From Spain to anywhere in the world

    Carbin, your 100% Spanish armory

    Zero worries

    Exchanges and returns are welcome

    Do you need help?

    Direct contact by phone or WhatsApp whenever you need it

    4,8/5

    Total reviews: 1006

    25/04/2025

    My order was delivered within the deadline, and the charging equipment was very reasonably priced! A reputable store!

    03/05/2024

    Excellent service, easy online purchasing, smooth shipping, and ideal packaging.

    18/04/2025

    SUPER HAPPY, I bought a Gamo Maxima 5.5 rifle and the shipping to Castellón was super super fast, the next morning I already had it at home, and everything was perfect, very protected packaging, very good communication, I will buy from them again a million times because they are incredibly friendly, the guy explained everything to me and such, 100% RECOMMENDED, thank you very much and a big hug.

    08/04/2025

    I had the pleasure of purchasing the 150th Anniversary Edition Cometa 400 Fenix ​​​​at the lowest price I could find online from these kind people. I also indicated that I am passionate about wood and that it would be great if they could send me a nicely figured example. These come with Spanish Walnut stocks. I'm not sure what was done in the background, but I can certainly say my hopes were met on this point!! Excellent communication and overall customer service as I had a few inquiries that were promptly answered. Shipping to France was FAST, easy, and inexpensive. I don't normally write these reviews, but this exceptional service motivated me to do so. I highly recommend this store!

    28/08/2024

    This is a company with a level of professionalism, sincerity, and responsiveness rarely seen today! It's always a pleasure doing business, there's complete trust, even with a very small client like me! Congratulations on your professionalism at all levels! I highly recommend it. Thank you.

    10/07/2024

    5-star product, 5-star seller, and very efficient delivery! First of all, I want to thank you for your attentiveness and professionalism. You guys are excellent! As for the press... WOW!!!! Five stars!! What I received was the Challenger III, which is an "upgrade" to the Challenger Breech Lock. THANK YOU SO MUCH!

    04/07/2024

    Top store in Spain with the best prices. I recommend it to everyone. Fast shipping, everything secure.

    25/04/2024

    Very fast shipping. Everything was great.

    14/03/2024

    A wide variety of products and extremely fast delivery service. Everything was fine.

    07/03/2024

    Professionalism on the part of the advisors, excellent quality of the products purchased, and very reasonable prices. The purchased items arrived quickly and without any issues, well protected during shipping.