AR15, M4, M16 - MAG|Coupler™ - Magazine Coupler
AR15, M4, M16 - MAG|Coupler™ - Magazine Coupler
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MAG|Coupler™ - AR15/M4/M16
⚠️ California AB-1263 Update ⚠️
Because Assembly Bill 1263 creates new requirements for online sales of certain firearm-related products, we will discontinue shipping MAG|Coupler™ products to California effective December 19, 2025.
All other products remain available for California customers.
Because Assembly Bill 1263 creates new requirements for online sales of certain firearm-related products, we will discontinue shipping MAG|Coupler™ products to California effective December 19, 2025.
All other products remain available for California customers.
Requires and only works with: MAGPUL® PMAG® AR/M4 GEN M3™ .223 / 5.56x45mm
What’s included
- Available in 1-pack and 3-pack.
- 1-pack = 1 coupler (requires 2 magazines).
- 3-pack = 3 couplers (requires 6 magazines).
Product details / features
- Patented design — US Patent No. 10,126,076.
- Replaces existing floorplate for secure coupling.
- Maintains each magazine’s round count and feed geometry.
- No permanent modifications required.
- Made in the USA.
Installation notes
MAG|Couplers use opposing teeth to grip the magazine body. They are designed for a tight fit and may require force to install. Applying a small amount of liquid dish soap or hand soap to the coupler teeth before installation will ease fitment. The tight fit helps ensure secure retention under recoil.
Please note: We are not able to accept returns on coupler products. Please see our store policy for more information.
⚠️ California Notice: This magazine connector is for lawful storage, transport, and organization only. It does not change magazine capacity or firearm function. It does not alter a firearm’s rate of fire, increase firing cadence, or speed up reloading.
Couldn't load pickup availability

Got these to make California a little more bearable. Went on quick and easy on gen 3 10rd pmags and the shipping was fast.
Restricted to 10 rd mag max capacity, this makes up for that disadvantage. Doubles the capacity and makes the AR feel stock. Easy to install and very rugged.
Well made, very smart idea