American Defense MFG
American Defense Manufacturing builds American made AR-15 and AR-10 rifles, quick detach scope mounts, and optic mounting systems engineered for military, law enforcement, and civilian shooters. Based in New Berlin, Wisconsin, ADM is best known for its patented QD Auto Lock System, a quick detach mount built to return to zero after repeated removal. From ambidextrous rifle platforms to precision bipod mounts and red dot mounts, every ADM product is machined in house and backed by a manufacturer warranty for shooters who need dependable gear in the field.
American Defense MFG For Sale
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American Defense Mfg AM DEF TRIJICON MRO...
As low as $107.83
Compare offers from $107.83AM DEF DELTA SCOPE MOUNT 30MM 1.7"
As low as $313.17
Compare offers from $313.17AM DEF HOLOSUN AEMS QR NV 2.33"
As low as $131.92
Compare offers from $131.92American Defense Mfg ACOG MOUNT 4X POWER
As low as $100.95
Compare offers from $100.95AM DEF RMR LW QD MOUNT LOW LH
As low as $108.99
Compare offers from $108.99AM DEF PICATINNY RISER STD 5 SLOT
As low as $115.86
Compare offers from $115.86AM DEF UIC MOD 1 5.56 14.5" 30RD BLK
As low as $1,407.00
Compare offers from $1,407.00AM DEF AD-B2 CNTLVR MINI ACOG 1.54"
As low as $109.99
Compare offers from $109.99American Defense Mfg AM DEF HOLOSUN 509T...
As low as $103.24
Compare offers from $103.24AM DEF 1700-XLR RISER-TITANIUM LVR
As low as $200.75
Compare offers from $200.75AM DEF OFFSET MOUNT DPP/EFLEX
As low as $129.68
Compare offers from $129.68AMER. DEF. RECON 34MM Q.D. TAC R SCOPE M...
As low as $240.90
Compare offers from $240.90Product Focus
American Defense Mfg Firearm Models
ADM4
American Defense Manufacturing UIC Mod 2 rifle in .223/5.56 NATO with AR-15 platform and 16 inch barrel. High-end UIC-compatible platform finished in …
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UIC15
American Defense Manufacturing UIC15 rifle in .223/5.56 NATO with AR-15 platform and 14 inch barrel. Compact UIC-compatible configuration. 30-round ma…
View Details →Frequently asked questions
What is American Defense Manufacturing known for?
ADM built its reputation on the QD Auto Lock System, a lever operated quick detach mount that lets shooters remove and reattach an optic without losing zero. That mount design led the company into a full catalog of scope mounts, red dot mounts, bipod mounts, and eventually complete ambidextrous AR-15 and AR-10 rifles.
Are ADM QD mounts actually worth the price?
Shooters who compare ADM against other quick detach brands generally point to consistent return to zero, US sourced 6061 aluminum construction, and a hard coat anodized finish that holds up under repeated mounting cycles. The mounts sit in a mid to upper price tier for optic mounting hardware, which reflects the machining tolerances required for the auto lock lever to function reliably over years of use rather than a single season.
How does the ADM Auto Lock quick detach system maintain zero?
The Auto Lock lever clamps the mount to a Picatinny rail using a cammed lever mechanism rather than a simple thumbscrew. Because the lever applies even, repeatable clamping pressure each time it closes, the optic returns to the same mounting position after being removed, which is the main reason shooters reach for ADM when they need to swap optics between rifles or pack a scope for travel.
Where are American Defense Manufacturing products made?
All ADM rifles, mounts, and components are designed and manufactured in the company's New Berlin, Wisconsin facility using US sourced materials. This domestic manufacturing process is a common search point for buyers who specifically want an American made AR-15 or American made scope mount rather than an imported alternative.
What is the ADM UIC rifle series?
UIC stands for Universal Improved Carbine, ADM's flagship line of fully ambidextrous AR-15 and AR-10 pattern rifles. The UIC MOD-2 is the current generation platform and is available in multiple calibers, including 6mm ARC, with configurable furniture, Cerakote finishes, and chassis options for competition, hunting, or duty use.
Does American Defense Manufacturing offer a law enforcement or military discount?
Yes. ADM offers a dedicated discount program for verified law enforcement and military personnel, along with a dealer locator tool so buyers can find a local shop that carries ADM rifles, mounts, and accessories rather than ordering direct where FFL transfer rules apply.
About
American Defense Manufacturing is a Wisconsin based firearms and accessories company that designs and machines its products in house rather than outsourcing to overseas suppliers. The company's core lineup covers three areas: fully ambidextrous AR-15 and AR-10 rifles, quick detach scope and optic mounts, and supporting components such as bipod mounts, buffer tubes, and upper and lower receivers. ADM also produces private label and OEM mounting solutions for several well known military and law enforcement equipment brands, which has put its manufacturing standards in front of professional buyers who demand consistent tolerances.
What sets ADM apart in a crowded AR-15 parts market is its focus on quick detach hardware that holds zero. The company's patented Auto Lock lever system is used across its scope mounts, red dot mounts, and bipod bases, giving shooters a single mounting standard they can rely on whether they are configuring a precision rifle chassis or a home defense carbine. Every product ships from New Berlin, Wisconsin, and is backed by a manufacturer warranty and direct technical support for buyers who need help with fit, torque specs, or compatibility.