CAL stands for Cant And Loc. The design removes pan from the equation so that every time you deploy the bipod, the bore is perpendicular to the legs. That repeatability is the point. The Gen 2 CAL series (BT65 standard, BT69 tall) delivers 63 degrees of adjustable preloaded cant, non-rotating legs, and the same patented five-position leg system as every Atlas, in standard and tall heights. NSN 1005-01-715-0851. Available with FDE finish on select configurations. The serious ELR and benchrest platform.
About the CAL Series: Fulfilling requests for an Atlas without the ability to Cant prompted creation of the CAL (Cant And Loc) Atlas® Bipod. It delivers the same novel Atlas feature of five independent leg positions – including the patented 45° leg position – but without the Pan function to ensure the bore stays perpendicular to the bipod legs. Features 63º of adjustable, preloaded Cant and a wide footprint. Made in the USA.
The BT65-NC model Atlas Bipod is part of our CAL Series. The “NC” stands for “No Clamp,” meaning it requires any 17S size mount in order to attach to a firearm. The interface to install a clamp has a two hole pattern of 1.100” with 10/32 threads. It will also mount directly to ourBT19 AI Spigot or BT70 M-LOK® Adapter.
Adjustable, preloaded Cant with additional tension lever made possible using original KMW Pod-Loc® (instructions below).
See all BT65-NC PLUS variations for compatible clamp options (Picatinny Rail, ARCA Rail, Dual Picatinny and ARCA)
$264.95–$402.00Price range: $264.95 through $402.00
Configure
About the CAL Series: Fulfilling requests for an Atlas without the ability to Cant prompted creation of the CAL (Cant And Loc) Atlas® Bipod. It delivers the same novel Atlas feature of five independent leg positions – including the patented 45° leg position – but without the Pan function to ensure the bore stays perpendicular to the bipod legs. Features 63º of adjustable, preloaded Cant and a wide footprint. Made in the USA.
The BT69-NC model Atlas Bipod is part of our Tall CAL Series. The “NC” stands for “No Clamp,” meaning it requires any 17S size mount in order to attach to a firearm. The interface to install a clamp has a two hole pattern of 1.100” with 10/32 threads. It will also mount directly to our BT19 AI Spigot or BT70 M-LOK® Adapter.
Adjustable, preloaded Cant with additional tension lever made possible using original KMW Pod-Loc® (instructions below).
See all BT69-NC PLUS variations for compatible clamp options (Picatinny Rail, ARCA Rail, Dual Picatinny and ARCA)
$289.95–$427.00Price range: $289.95 through $427.00
Configure
Standard Height (BT65): Elevation 4.8-9.2 inches, footprint 9.0-12.5 inches. The flat-range and F-class setup. Most common CAL choice for standard-height rifle rails.
Tall Height (BT69): Elevation 6.0-12.5 inches, footprint 9.25-16.5 inches. Extra ground clearance for positional shooting or higher-mounted rails. Uses both 6061-T6 and 7075-T6 aluminum.
2-Screw Clamp: Included Picatinny clamp for a permanent setup.
Lever / LW17: ADM-170-S quick-detach lever for fast on and off. Good for stage shooters who share one bipod between rifles.
No Clamp / NC: Ships without clamp. Lightest weight. Pairs with ARCA clamps, BT70 M-LOK adapter, or custom mounts. FDE-BH finish available on select NC models.
Default recommendation: BT65-LW17 for a standard-height lever setup. BT65-NC if you run ARCA or M-LOK.
Compare CAL Configurations
Config
SKU
Mount
Weight
Elevation
Footprint
Price
NSN
Std 2-Screw
BT65
2-screw clamp
12.9 oz
4.9-9.2 in
9.0-12.5 in
$264.95
1005-01-715-0851
Std Lever (LW17)
BT65-LW17
ADM-170-S QD
14.6 oz
5.1-9.4 in
9.0-12.5 in
$329.95
1005-01-703-0644
Std No Clamp (NC)
BT65-NC
None (17S)
12.7 oz
4.8-9.2 in
9.0-12.5 in
$264.95
--
Tall 2-Screw
BT69
2-screw clamp
14.5 oz
6.1-12.3 in
9.25-16.5 in
$289.95
--
Tall Lever (LW17)
BT69-LW17
ADM-170-S QD
16.3 oz
6.3-12.5 in
9.25-16.5 in
$354.95
--
Tall No Clamp (NC)
BT69-NC
None (17S)
14.4 oz
6.0-12.3 in
9.25-16.5 in
$289.95
--
Mounting and Compatibility
CAL models mount to any 1913 Picatinny rail with the included two-screw clamp or ADM-170-S lever on LW17 variants. NC models accept 17S-size mounts with matching hole spacing. For ARCA setups, use an Area 419 ARCALOCK, ADM QD ARCA Mount, RRS BTC-Pro, or Arisaka clamp with any NC CAL. For M-LOK handguards, pair any NC CAL with the BT70 M-LOK Adapter. FDE and blemished options are available on select configurations when in stock. The BT6569ML adapter upgrades earlier CAL models to M-LOK compatibility.
Why the CAL Gen 2
Pan removed by design. Every deployment is the same. No corrections needed between shots for bore alignment.
63 degrees of adjustable preloaded cant with tension lever.
Non-rotating legs for stable deployment on any surface.
Patented 45-degree leg position plus 0, 90, 135, and 180 degrees.
Hold What You Move Technology keeps the cant setting locked.
Standard height adds M-LOK Mount Upgrade (BT6569ML) compatibility.
NSN 1005-01-715-0851. Military-adopted.
Made in the USA. No-fine-print lifetime warranty.
Choosing within CAL Atlas Bipods comes down to a few key questions. We answer how the options compare, which option to choose, and what fits your rifle below to help you decide.
Frequently Asked Questions
What is the advantage of no pan on the CAL?
When pan is removed, the bore stays perpendicular to the legs every time you deploy. At extreme long range, a tiny variation in platform orientation shows up as significant elevation or windage shift. Removing pan eliminates one variable. It is the right tool for benchrest, F-class, ELR, and any discipline where shot-to-shot repeatability is paramount.
What is the difference between CAL and PSR?
Both are built on the same Atlas platform. The PSR has 30-degree pan and cant, making it the right choice for multi-target stages and dynamic competition. The CAL removes pan entirely for a locked-in, highly repeatable ELR setup. If you switch between disciplines, the PSR is more flexible. If you shoot one thing at long range, the CAL is the more precise tool.
What does LW17 mean on CAL models?
LW17 indicates the model ships with an installed ADM-170-S quick-detach lever mount for tool-free Picatinny attachment and removal.
Can I get the CAL in FDE?
Yes. FDE-BH finish is available on select NC CAL models. Check the product page for current availability.
What height should I choose, standard or tall?
Standard (BT65) gives 4.8-9.2 inch elevation for most rifle and range setups. Tall (BT69) gives 6.0-12.5 inch elevation for higher rails, larger-caliber rifles, or positional shooting that requires more ground clearance.
Does the CAL work on M-LOK handguards?
Yes. Pair any NC CAL model with the BT70 M-LOK Adapter ($34.95) for a low-profile, semi-permanent M-LOK connection. The BT6569ML mount upgrade is also available for earlier CAL models.
What warranty does the CAL Gen 2 carry?
A no-fine-print lifetime warranty from B&T Industries. If it ever fails, they make it right.
Shop CAL Gen 2 Atlas Bipods
Configure your CAL above. Standard height for most setups, tall for elevated rails and positional shooting. Lever for quick detach, 2-Screw for permanent mount, NC for ARCA and M-LOK. Every CAL is made in the USA and covered by a no-fine-print lifetime warranty. If repeatability at extreme range is the mission, this is the tool.
