Description
The PRIMO Gas Block is a low profile billet machined, .750″ ID block, made from nitrided 416R crucible alloy steel. The block has two provisions for mounting, set screws and / or pinning. The included splined pin allows qualified gunsmiths and experienced builders the option of having a military style secured gas block. A 1/8â? carbide drill bit and three ton press are recommended for pinning. Knurl grip cup pointed fasteners ensure a secure attachment to host barrel. The PRIMO’s pre-drilled hole helps locate the drilling operation on pre-dimpled barrels for fixture free installation.
- 416R Crucible Alloy Steel
- QPQ Nitride finish
- .750″ gas block diameter compatible
- low profile design
- included splined pin
- Knurl grip – cup pointed fasteners
- included hex key
- Included gas tube roll pin
- Pre-drilled for ease of barrel pin installation
Brandon –
I am what many would consider a poor, so while building my AR10 I used a PSA upper. The adjustable gas block didn’t work and I had constant cycling issues. Griffin Armament being less than 30 miles away from my house had the best quality part and it fixed my problem. Very pleased to say that I no longer have issues with my rifle.
Red –
Griffin makes great products. That was the reason behind my choice in this gas block. I’ve purchased other products made by Griffin that have held up. I will continue to be customer.
Chang –
Awesome gas block to have i highly recommend it, it is a tight and secure gas block with a reasonable price just dont use set screws for your barrel pin it too. I will buy again!