How to Mount a Bipod on Your Rifle
Mounting a bipod takes about five minutes once you know which of three interfaces your rifle uses: sling studs, a Picatinny rail, or M-LOK. This guide shows you how to identify yours and walks through each path, including the BT81 adapter that lets a sling-stud hunting rifle run any Atlas with no gunsmith. Match your interface below and follow the steps. All the parts mentioned are American-made and carry a lifetime warranty.
Choose Your Bipod Interface
Look under your forend, match your interface, and follow the step-by-step guide for your rifle.
Picatinny Rail
Clamp an Atlas directly, or add a short rail section first.
Read the guideM-LOK Handguard
Direct-mount M-LOK bipod, or the BT70 adapter.
Read the guideSling Studs
The BT81 Lil Brandi adapter, no gunsmith needed.
Read the guideARCA Rail
Slide-and-lock dovetail favored for PRS.
Read the guideAccuracy International
AI and Sako pattern rifles.
Read the guideInstall a Picatinny Rail
Add a rail to a bare forend or handguard.
Read the guideStep 1: identify your rifle's mounting system
Look at the underside of your rifle’s forend or handguard. One of these three is what you have, and it determines everything that follows.
Sling stud rifles: the BT81 adapter path
If your rifle has sling studs, the BT81 Lil Brandi adapter gives you a rail to mount to. It is the most common hunting setup and needs no gunsmith.
Remove the front sling swivel from the stud if one is installed.
Attach the BT81 Lil Brandi to the front sling stud and tighten it down. This adds a short Picatinny rail.
Clamp your Atlas bipod onto the new rail and snug the clamp.
Reattach your sling to the BT81 if it includes a stud, so you keep your carry option.
Picatinny and M-LOK rifles
If your rifle already has a rail or M-LOK, mounting is direct. Pick the path that matches your handguard.
Picatinny Open the Atlas clamp, set it onto the rail at the spot that balances the rifle, and tighten. With an ADM lever (LW17) you can do this by hand in seconds.
M-LOK Use a direct-mount Atlas M-LOK bipod, or attach the BT70 M-LOK adapter to your handguard and clamp a standard Atlas to it.
No rail or slots Add an Atlas Picatinny rail section (such as the BT15 or BT17) to your handguard first, then mount the bipod.
Torque specs: tighten it right
Fasteners hold zero only when torqued correctly. Too loose and the rail or clamp shifts under recoil; too tight and you can strip alloy threads. Use a calibrated inch-pound torque driver and a small amount of removable threadlocker on rail base screws. These are typical starting values, always confirm against your rifle and rail maker’s spec:
Picatinny rail base screws (6-48 or 8-40) 15 to 25 in-lb.
Atlas Picatinny clamp nut snug firmly so the clamp will not move on the rail; do not overtighten.
ADM-170-S quick-detach lever set lever tension per the instructions so it locks with firm hand pressure, no tools needed.
ARCA clamp tension screw tighten until the bipod will not slide under recoil, then stop.
Reference (action and scope base screws) 15 to 35 in-lb depending on screw size.
Frequently Asked Questions
How do I attach a bipod to a rifle?
First identify your mounting interface: sling studs, Picatinny, or M-LOK. Sling-stud rifles use the BT81 adapter to add a rail; Picatinny rifles clamp the Atlas directly; M-LOK rifles use a direct-mount bipod or the BT70 adapter. Each takes about five minutes.
My rifle has sling studs, not a rail. What do I need?
You need the BT81 Lil Brandi adapter. It attaches to the front sling stud and adds a short Picatinny rail, so any Atlas bipod mounts on. No gunsmith and no permanent changes to your rifle.
Can I mount a bipod without a gunsmith?
Yes. All three paths (sling stud with the BT81 adapter, direct Picatinny, and M-LOK) are hand-tool installs you can do at home in minutes. None require drilling, tapping, or a gunsmith.
What is the BT81 Lil Brandi?
The BT81 Lil Brandi is an adapter that attaches to a front sling stud and provides a short Picatinny rail. It lets hunters and bolt-rifle owners mount an Atlas bipod on rifles that have studs instead of a rail.
M-LOK vs Picatinny: what is the difference?
Picatinny is a continuous slotted rail; M-LOK is a series of oblong slots cut into the handguard. Atlas clamps directly to Picatinny, and mounts to M-LOK with a direct-mount bipod or the BT70 adapter.
How do I install a Picatinny rail?
For a sling-stud rifle, the BT81 adds a rail at the front stud. For a handguard, attach an Atlas rail section such as the BT15 or BT17 to the existing slots or holes. Both are hand-tool installs with no gunsmith needed.
Do I need tools to mount an Atlas bipod?
Usually just the hex wrench that fits the clamp or adapter screw. Models with the ADM quick-detach lever (LW17) mount and remove from a rail entirely by hand, with no tools at all.
Will a bipod loosen under recoil?
A properly tightened Atlas clamp grips the rail and holds under repeated recoil. Snug the clamp to spec, and on an ADM lever model confirm the lever tension is set correctly. Atlas mounting is designed to stay put shot after shot.
What torque should I use to mount a bipod or Picatinny rail?
Picatinny rail base screws typically take 15 to 25 in-lb, and the Atlas clamp should be snug enough not to shift under recoil. Use an inch-pound torque driver, add removable threadlocker to rail screws, and confirm the exact figure with your rifle and rail manufacturer.
Get the part you need
Know your interface? Grab the BT81 adapter for a sling-stud rifle, the BT70 adapter for M-LOK, or a Picatinny rail section for your handguard. Not sure which Atlas to pair it with, see the buyer guide or reach out to our team in Kansas.