Buying a high-end red dot is an investment. But before you can even mount it to your rail, the industry forces you into an immediate tactical crossroads: What height do you run?
For years, shooters have been locked into a frustrating cycle of buyer’s remorse. You buy a traditional 1.57″ mount because it is the safe, classic choice. Then you watch a video on the ergonomic benefits of a taller 1.93″ posture, or you pick up a set of night vision goggles, and suddenly your mount is obsolete. You buy a second mount, spend another hundred plus dollars, re-torque your hardware, and re-zero your rifle from scratch.
Buying an optic mount shouldn’t feel like signing a lifetime contract with a single height or a single red dot footprint. We built the KDG BOM Series to kill this cycle once and for all.
THE HEIGHT DEBATE: BREAKING DOWN THE SIGHT PICTURE
To understand why having both options in a single box matters, you need to understand how height entirely dictates your interaction with the rifle. Neither height is universally “better”—they are environmental tools.
The Case for 1.57″ (Lower Third Co-Witness)
This is the standard baseline for a reason. A 1.57-inch height places your optic high enough to clear your hands and accessories, but low enough to maintain a traditional, aggressive cheek weld on the stock.
- Best For: Bench shooting, prone shooting, and traditional rifle marksmanship where maximum contact between your face and the stock delivers the most stable platform.
- The Advantage: It allows your backup iron sights to sit comfortably in the lower third of the glass, giving you an immediate failsafe without cluttering your primary point of aim.
The Case for 1.93″ (Heads-Up / Tall)
A 1.93-inch height raises the optic significantly, allowing for a completely upright, heads-up posture.
- Best For: Rapid CQB transitions, passive aiming under night vision (NVG) housings, or shooting while running a gas mask or heavy face shield.
- The Advantage: By keeping your neck straight, you increase your peripheral vision and situational awareness. It also relieves neck strain during long days on the range or extended patrol shifts.
| Tactical Scenario | Ideal Height | Why It Matters |
| Prone / Long-Range Precision | 1.57″ | Maximizes cheek weld stability and skull-to-stock alignment. |
| Passive Night Vision (NVGs) | 1.93″ | Clears the physical bulk of the night vision tubes easily. |
| Rapid Room Clearing / CQB | 1.93″ | Delivers an instant sight picture without dropping your head. |
| Traditional Iron Sight Backup | 1.57″ | Keeps iron sights usable inside the lower window. |
Instead of making you guess which environment you will spend the most time in, the BOM Series packages the base mount and a precision lift block together. Test both on your setup, figure out what works for your eyes, and change your mind whenever the mission shifts.
EVADE THE FOOTPRINT TAX
The height isn’t the only trap the industry sets for you. Red dot manufacturers love changing footprints. The micro red dot you run today might get replaced next season by a completely new closed-emitter design.
Normally, changing your optic means buying a brand-new mount. The BOM Series stops this financial drain with its interchangeable top-plate system. If you want to jump from a traditional open reflex sight to the latest closed-emitter tech, you don’t swap the base. You just change the plate.
The master chassis handles five of the most prolific footprints on the market right now:
Supported Systems: Aimpoint T2 // Trijicon RMR // Aimpoint ACRO // Leupold DPP // Aimpoint COA
HARD MOUNT SECURITY, HYBRID MOBILITY
We engineered the BOM Series for the shooter who does not want or need a quick-detach lever. If your rifle is dedicated to a specific role, or if it rides hard in the trunk of a patrol vehicle, a fixed hard mount is the gold standard for absolute structural reliability.
To ensure it never slips, we utilized a hybrid material design. The main body and riser blocks are carved from lightweight aluminum to protect your rifle’s balance. The side clamp and heavy-duty crossbolt are machined from high-strength steel. When you torque this steel clamp onto a standard 1913 Picatinny rail, it forms a vice-like, unyielding anchor that handles severe physical impact and violent recoil impulses without a hint of zero shift.
MASTER SPECIFICATIONS
[PRODUCT SPECIFICATION DATA]
PRODUCT: KDG BOM SERIES OPTIC MOUNT
MASTER SKU: BOM5-MK1-
INTERFACE: 1913 PICATINNY HARD MOUNT
HEIGHT CONFIGURATION: 1.57" OR 1.93" (ALL PARTS INCLUDED)
FOOTPRINT PLATES: T2, RMR, ACRO, DPP, COA
BASE MATERIAL: LIGHTWEIGHT ALUMINUM
CLAMP MATERIAL: HIGH-STRENGTH STEEL
Every Box Contains:
- (1) BOM Aluminum Base
- (1) High-Strength Steel Side Clamp & Bolt
- (1) 1.93″ Riser / Lift Block
- (1) Interchangeable Top Plate of your choice
- (2) Full Hardware Sets (Short screws for 1.57″ // Long screws for 1.93″)
- (1) Optic-Specific Mounting Screw Kit
STOP COMPROMISING YOUR SETUP
You shouldn’t have to spend double the money just to find the perfect optic height, and you shouldn’t be penalized for upgrading your red dot down the road. We took the frustration out of fixed mounts, made the lockup bulletproof, and gave you the freedom to build your rifle exactly how you want it.
Equip your platform with the KDG BOM Series, stop playing the guessing game, and gain the advantage.
