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Griffin Armament 3 Lug Barrel Adapter - 1/2x28
Griffin Armament 3 Lug Barrel Adapter - 1/2x28
Griffin Armament 3 Lug Barrel Adapter - 1/2x28
Griffin Armament 3 Lug Barrel Adapter - 1/2x28

Griffin Armament 3 Lug Barrel Adapter - 1/2x28

Griffin Armament · Muzzle Devices

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Best price

$71.96at Ammunition Depot

In stock checked Oct 1, 2026

Compare 6 stores

Where to buy

StorePriceAvailabilityBuyAdd to build
Ammunition Depot Best price $71.96checked Oct 1, 2026 In stock Buy at Ammunition Depot
MidwayUSA $71.96checked Oct 1, 2026 In stock Buy at MidwayUSA
GunMag Warehouse $72.99checked Oct 1, 2026 In stock Buy at GunMag Warehouse
Battlehawk Armory $56.65Salechecked Oct 1, 2026 Check store Buy at Battlehawk Armory
Rainier Arms $67.00not checked recently Check store Buy at Rainier Arms
Palmetto State Armory $72.99checked Oct 1, 2026 Check store Buy at Palmetto State Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $57.56 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
Ammunition Depot$71.96$71.96$79.99
Battlehawk Armory$56.65$56.65$56.65
GunMag Warehouse$72.99$72.99$72.99
MidwayUSA$71.96$57.56$71.96
Palmetto State Armory$72.99$72.99$72.99

Since Sep 28, 2026.

About this part

The Griffin Armament 3 Lug Barrel Adapter - 1/2x28 is a muzzle device from Griffin Armament. It's sold by 6 stores (3 in stock), from $56.65 to $72.99. The lowest in-stock price in the last 30 days was $57.56 at MidwayUSA.

Fits and works with

Muzzle thread
1/2x28 · Muzzle devices

Specifications

Manufacturer
Griffin Armament

From the manufacturer


These 3 Lug adapters are HK pattern and will work with any 3 lug silencer on the market made to this standard. They will also work with Griffin 3 lug interface assemblies1/2x28 Thread Total Length: 1.4375". Based off of industry standard .625" barrel threads, added length should be ~.8125".Made from 17-4ph stainless and Melonite QPQ treated.Features17-4 construction 

Similar muzzle devices

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$71.96 at Ammunition Depot
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