Description
The PRIMO Gas Block is a low profile billet machined, .625″ 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.
Not compatible with Griffin’s HEDP barrels. Compatible gas block can be found here.
- 416R Crucible Alloy Steel
- QPQ Nitride finish
- .625″ gas block diameter compatible
- low profile design
- included splined pin
- Knurl grip – cup pointed fasteners
- inlcuded hex key
- Included gas tube roll pin
- Pre-drilled for ease of barrel pin installation
Rupert Pupkin –
Perfect fit, finish, everything well machined. Everything in photo was included in very nice packaging. Installed on a Faxon gunner, aligned set screws, then drilled for pin with 1/8 carbide bit. Very happy with purchase. Material and finish are identical to the Faxon barrel which was a plus, pin hole is pre drilled. very pleased.
KING –
Quality gas block at a great price. I’ve bought two and they run flawlessly. I especially like that they include a pilot hole and pin.