Grimtron Heavy-Duty Biometric Safe Review: Cheap Bedside Pick

The Grimtron Heavy-Duty Biometric Safe is a low-cost handgun safe that stacks several ways in: a fingerprint reader the seller says stores up to 100 prints, a PIN, backup keys and a USB-C emergency power port. It is built for a nightstand, a drawer, a closet shelf or a vehicle, and it sat in the under $50 range at the time of writing. Buy it if you want a cheap, simple bedside safe for one full-size pistol. Skip it if you need a fire rating, a stated steel gauge or a clearly documented battery spec.

Specs from the listing

The interior figures come from the seller bullet text, not a separate spec field. Verify them against the product images on the Amazon listing before you rely on them for a tight fit.

Access and lock

The seller lists four methods. First, a fingerprint scanner that the listing says can store up to 100 fingerprints. Second, a PIN you set yourself. Third, the included backup keys. Fourth, an emergency USB-C port that can power the electronics if the battery dies and the key is not nearby. That last item is a thoughtful addition at this price, because a dead battery is the most common failure for any electronic box.

Registering fingerprints is described as quick. A good routine is to enroll each finger two or three times from slightly different angles, and to test the reader with dry and slightly damp hands. Pick a PIN that is easy to enter without looking and different from the codes on your phone and door lock. Keep the key somewhere safe and away from children, and remember that a USB-C cable and power bank only help if you know where they are.

Build and security features

The listing says the body is reinforced alloy steel with internal hinges, anti-pry bars and solid locking bolts. The description adds that the anti-pry design has gaps smaller than 0.039 inch. These are seller statements, and there is no steel gauge, certification or fire or water rating in the data we have. That makes it reasonable for keeping a firearm out of casual hands, but not a fire or burglary vault.

The safe also has a soft interior LED light and what the description calls a silent mode, which turns off the keypad beeps. Both are useful features for a dark bedroom. A silent mode is worth testing right after setup so you know how to turn it on and off.

Interior and fit

The seller gives an interior of about 11.22 inches long, 6.45 inches wide and 2.48 inches tall, and describes room for a full-size pistol, spare magazines or small valuables. The tight height of about two and a half inches is the number to check. A pistol with a tall optic, a light or a thick grip may not close the lid, so measure your handgun at its tallest point. The lid and any padding will also reduce the free space slightly.

For a typical full-size pistol without a large optic, the length is generous. The width leaves some room beside the pistol for a magazine or small item, but this is still a single-handgun box. If you want to store two pistols, a model like the BILLCONCH biometric handgun safe lists a stated interior that is a bit wider.

Mounting and placement

The listing says you can mount it on a floor or wall or leave it freestanding, and the description adds that it has pre-drilled mounting holes with screws and expansion bolts included. That means you can secure it to a drawer bottom, a shelf or another flat surface. The seller also lists it for vehicle use, though you should check local rules and think about heat in a parked car, which can be hard on batteries.

Bolting it down is the most important thing you can do for theft resistance. At 8.2 pounds, an unmounted safe can be carried away. If you plan to leave it freestanding on a nightstand, consider at least adding a cable or a mounting surface that is hard to remove. Our best gun safe overview explains the different mounting approaches in more depth.

Power and batteries

The listing mentions a battery but the details in the data we have do not say which type it uses or how long it lasts. The description teases an FAQ about battery type, which suggests the answer is on the page. Read it, and then plan to change batteries on a schedule instead of waiting for a low-battery warning. The USB-C emergency port is your backup, and the key is your second backup, so you have a layered plan for the power failing.

It is a good idea to test the emergency port with a power bank once, right after setup, so you know the process before an emergency.

What owners say

No owner feedback summary was available for this listing and it has few reviews so far, so we will not invent themes. When you read buyer comments, look for how reliably the reader recognizes enrolled fingers, how the lid opens, noise in normal and silent modes, how long the battery lasts and whether the interior height clears optics. Buyer photos and videos tend to show real clearances better than the product images. Check whether comments mention customer support, since a low-cost brand may have limited help for replacement parts.

For a look at the unit in motion, Watch: Ready Set Gear reviews this exact Grimtron safe in the video below.

Setting it up well

Before you load a firearm, run through a short setup routine. Install fresh batteries, enroll fingerprints, set the PIN and then close and reopen the lid with each method. Try the key once, and try the USB-C port with a power bank. Decide where the safe will live, mark the screw holes, and mount it so the lid opens toward your dominant hand. Finally, practice a few dry, unloaded draws so the routine feels natural. If anything feels sticky or inconsistent, deal with it right away instead of hoping it improves.

Pros and cons

• Pros: very low price band, fingerprint plus PIN plus keys, USB-C emergency power, interior LED, silent mode, mounting hardware included, stated interior dimensions.
• Cons: interior height of about 2.5 inches, battery type not clear in the data, no fire rating listed, no steel gauge listed, single-handgun design.

How it compares

The ONNAIS Iron Pro review looks at another budget biometric safe with a keypad, a backup key and an emergency USB-C power option, designed for wall mounting. It is the closest feature match at a similar price.

The RPNB RP311F review covers a slim vertical biometric safe that mounts from several sides and weighs 7.7 pounds. It is the pick if you prefer a tall, narrow shape.

The BILLCONCH Biometric Handgun Safe review adds app control, up to 40 fingerprints and a stated interior of about 10.6 by 5.8 by 2.6 inches, with room for one large or two standard handguns.

The Hornady RAPiD Safe Night Guard review costs more and uses RFID, with a clock, USB ports, 14-gauge steel and a security cable. It is a more feature-rich nightstand safe if you can spend more.

Price and deals

At the time of writing, the Grimtron sat in the under $50 range, which is unusually low for a fingerprint model. Prices change often, so check today’s price on the Amazon page, and see our Grimtron promo code page for how sales and coupons usually work. You can also browse all models on Gun Safe Reviews A to Z.

Final verdict

The Grimtron is a good low-cost starting point for one handgun at the bedside, with layered access and a mounting kit in the box. The trade-offs are the shallow interior, the lack of a stated fire rating or steel gauge and uncertainty about the battery. Measure your pistol, bolt the safe down, enroll fingerprints carefully and test every entry method before relying on it. Child-access-prevention and storage laws vary by state, so check yours before choosing where to store a firearm.

Grimtron Heavy-Duty Biometric Safe FAQ

What size handgun fits the Grimtron Heavy-Duty Biometric Safe?

The seller gives an interior of about 11.22 by 6.45 by 2.48 inches and describes space for a full-size pistol plus spare magazines. The 2.48 inch height is the limit, so measure your pistol with any optic or light before ordering.

What happens if the battery dies?

The listing describes an emergency USB-C power port, backup keys and a PIN option. With a power source connected, you can unlock with your fingerprint or code, and the key is the other fallback. Test the port once after setup.

How many fingerprints can it store?

The seller says up to 100 fingerprints. Enroll each finger a few times from slightly different angles, as the seller suggests, and test with dry and slightly damp hands.

How do I mount the Grimtron safe?

It is listed for floor, wall or freestanding use, with pre-drilled mounting holes and screws and expansion bolts included. Pick a solid surface, and bolt it down if you want theft resistance, since it weighs 8.2 pounds.

Is the Grimtron fire resistant?

No fire or water rating appears in the listing details we reviewed. Treat it as lockable storage and look for a clearly rated product if fire protection is a priority.

FindsCheaper is reader-supported: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. We research listings, manuals and owner feedback; we do not accept payment for placement. Prices, coupons and availability change, so check Amazon for the current details. Store firearms safely and follow your state’s storage laws.