

🎯 Lock in Precision, Own the Outdoors
The WEAVER Base Top Mount - 90 is a high-quality, aluminum scope base designed for Marlin 39A round/octagon rifles. Precision-machined for a custom fit, it offers durable, lightweight strength and secure mounting for detachable and adjustable rings. Trusted by hunters and shooters alike, this classic mount ensures your optics stay rock-solid in any outdoor adventure.
| ASIN | B000GU9NG6 |
| Best Sellers Rank | #164,869 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #341 in Airsoft Gun Scope Mounts |
| Brand Name | WEAVER |
| Color | Gloss Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (674) |
| Date First Available | October 19, 2006 |
| Item Dimensions LxWxH | 8 x 3.5 x 0.25 inches |
| Item Package Dimensions L x W x H | 7.13 x 3.39 x 0.43 inches |
| Item Weight | 1.6 ounces |
| Manufacturer | Vista Outdoor Sales LLC |
| Material | Aluminum |
| Model Name | Weaver Top Mount Scope Base |
| Number of Items | 1 |
| Package Weight | 0.06 Kilograms |
| Part Number | 48069 |
| Size | 63B |
| Style | Classic |
| Suggested Users | unisex-adult |
M**R
Solid base mount.
Fit great on my Marlin 39a lever .22lr. Bolts right on and secures solid. Very basic looking.
L**O
Henry Homesteader
It's Weaver what would you expect, Great fit for my Henry Homesteader
A**D
Worked perfect on rossi and levtac r92
Perfect fit for both rossi r92 in 454, and levtac r92 also in 454.
D**A
Works great on a Henry 46-70
This is gloss black, I wanted a flat black mount to match everything else. Not too noticeable though. Fits great, good quality and a very good price.
U**S
Perfect
Weaver quality. Fit my 44 mag Marlin1894 perfectly. all screw holes aligned right on. Fit and finish very good.
K**R
Fits pretty well on NEF/H&R 22/.410
I found this poor rifle oxidizing in my parents garage. So i rescued it and decided to give it a new home. Iron sights were ight but i want that plinking zero for knocking furry rats from limbs come november. I thought about taking a dremel tool to it and makeshifting some dovetail depressions but this was a more effective measure. Great low price and the screws seem to fasten properly. The rail is a little raised on the front due to a pesky factory iron sight mound but i don't see why i can't get within an 1" group at 50m. This is an old New England Firearms .22/.410 combo rifle. i ordered the size of selection 82
J**T
Nice fit, easy to install with one suggestion.
Nicely machined and finished. Using this aluminum rail on a S&W 625 JM revolver. After removing my factory rear sight, attached nicely to the pre-machined screw holes as advertised and was on in minutes. When tightened, stayed level. Suggestion for protecting your gun finish. Recommend you place painters tape or electric tape on the underside of the mount, cut to fit right up to all edges of the rail, when securing it to the top strap of your revolver. The rail mounting process marred the satin stainless finish slightly near each corner where the mount contacts the top strap of the gun. This occurred just from securing it in place to the recommended torque, and may be chalked up to my inexperience in weekend gun-smithing. Take your time and secure each screw gradually and equally in a sequence and the mount will move less during the tightening operation, perhaps avoiding scratching the finish. After that, my red dot secured nicely to the rail, and I have experienced no movement (yet) after a few hundred rounds with the rail and optic. Good easy way to go all techie on my old school revolver.
S**Z
Fits 2023 Henry HOO9 30/30 Perfect
I Mounted on my 2023 Henry H009 30/30 with no problems. The screws fit perfect. Scope mounted perfect. Great weaver mount.
F**S
Bon prix
M**M
After reading a review somewhere else (I forget now) that this would likely fit my Henry Big Boy .357 Magnum rifle so I decided to take a chance on it over the official Henry part that was ~ x7 the price (yes, really...). It fits well enough for me, though it isn't perfect and one of the screws has to go it at a slight angle until I file out the holes ever so slightly along the center line. Note: there are two versions of the same basic Henry rifle - or so I've read: pre-2011 that has just the screw holes on the top/front of the action and the later model (mine) that has two additional holes further towards the rear of the action to give more stability for the scope; these extras are a big design improvement! I've used both sets of screw holes: Initially I had this rail mounted using the front two screws in the top of the action (perfect alignment of the screw holes, but close together) but not using thread locking compound (aka 'Blue Locktite') meant the scope rattled loose after ~50 rounds 40 clicks to the side on my scope; I switched to one front and one back while on the range which got me through the day. The rail came with long enough screws. With the rail mounted in place - but not scope rings - it is just possible to use the original Henry iron sights on the barrel though they are very close to the top of the rail which makes it a little awkward. This does mean though that if there is a need to remove the scope quickly - say due to damage, fogging or slippage/ mis-sighting - it can be done in seconds and without any tools and you can go back to using the iron sights without the need for a fine screwdriver to unscrew this rail.
G**N
Work as expected.
Y**R
ok
R**T
This fit my 1957 Marlin 39a Golden Mountie with no modifications. It is very straight and sturdy. Product quality and finish is remarkable.
Trustpilot
5 days ago
2 weeks ago