Griffin Armament

Griffin Armament Primo 416R Low Profile Gas Block - .750"

Griffin Armament Primo 416r Low Profile Gas Block - .750" - Gas Block for AR-15 - view 1
Griffin Armament Primo 416r Low Profile Gas Block - .750" - Gas Block for AR-15 - view 2
Buy Now

Griffin Armament

Overview

The Griffin Armament Primo Low Profile Gas Block is designed for a .750-inch diameter, making it a perfect fit for a variety of AR-15 builds. Constructed from stainless steel with a nitride finish, this clamp-on gas block provides a durable and reliable mounting solution that maintains a sleek profile. It's particularly suited for pistol builds, especially those chambered in 300 Blackout, where space is at a premium and effective gas regulation is crucial.

Specifications

MPNGAPGB
MaterialStainless Steel
Gas Block Diameter.750
Mounting TypeClamp-On
ProfileLow Profile
AdjustableNo
FinishNitride

Available Merchants(2)

Prices checked

Price Alert

Get an email if the price drops 10% or more.
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$52
Buy Now
Primary Arms logo
Primary Arms
Free shipping over $99
Shipping Speed
In Stock
$52
Buy Now

Build history on GunPartPicker

Builders have been adding the Griffin Armament Primo 416R Low Profile Gas Block - .750" to their builds on GunPartPicker since March 2026. All time, it ranks #74 of the 195 gas blocks builders have added.

It was hard to find in September 2026, in stock on only 4 of the 14 days we checked, and today both retailers we track have it in stock. Prices barely moved in September 2026, holding around $52.20, so there haven't been real sales lately. Buying today, the lowest price is $52.20 at Optics Planet, which matches the best price we saw in September.

Trending gas blocks →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Not sure which gas block to pick?

We ranked every gas block by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Gas Block Guide →

Check it against the live catalog:

Frequently Built With

The part most often added in each category by the builds that include this one

Aero Precision AR-15 Ejection Port Cover Assembly

Aero Precision AR-15 Ejection Port Cover Assembly

Dust Cover$14in 67% of them
Bravo Company Manufacturing BCMGUNFIGHTER Short Vertical Grip - Picatinny - Black

Bravo Company Manufacturing BCMGUNFIGHTER Short Vertical Grip - Picatinny - Black

Foregrip$36in 33% of them
PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

Bolt Carrier Group$90in 33% of them
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Charging Handle$69 · out of stockin 33% of them
Criterion Barrels 18" HBAR Contour, Rifle Gas System, 223 Wylde

Criterion Barrels 18" HBAR Contour, Rifle Gas System, 223 Wylde

Barrel$284in 33% of them
CMMG AR-15 Forward Assist KIT

CMMG AR-15 Forward Assist KIT

Forward Assist$15in 33% of them

Builds Featuring This Part

See all 2 →

Builds in the community that include the Griffin Armament Primo 416r Low Profile Gas Block - .750"

BuildPartsTotal
for the range 9" build
for the range 9"		24$1251.96
for hunting hogs 14.5" build
for hunting hogs 14.5"		24$2456.93

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!