Our Rifle Dynamics Tunable front sight/gas block features a set screw on the front face to close & open gas. This makes it ideal for suppression as well as tuning for reliable use with a variety of ammo types. Similar to the RD Venom Gas Block, the RD Tunable gas block combines both the front sight and gas block into one unit, which will lighten up the front of your AK and will additionally make for a faster handling rifle by moving weight back and improving balance.
Many of you will notice that we have lowered the cost of the Tunable block significantly from $140 to $79.99. We have changed production of the retail version of the tunable gas block to casting, for retail sale. Our sales and production team saw fit to pass the savings on to you, the customer, while being completely transparent about the blocks production.
Please note, this gas block will not cover the existing gas block pin holes on your barrel. An extended handguard is the simplest way to make your build aesthetically pleasing, otherwise we would recommend purchasing the Rifle Dynamics Extended Tunable Front Sight/Gas Block that will cover the holes altogether, but will add 0.7 oz to the front end.
The Tunable FS/GB (front sight/gas block) features an adjustment screw on the front face of the block to either open or close off gas. The front sight mechanically adjusts the same as a traditional/standard AK front sight. The drum adjusts windage left and right, and the post screws up and down for elevation. *Includes AK sight tool, but most sight tools will work with our block.
***Our gas blocks will work with most AKM/AK74 patterned rifles with the acceptable journal range listed above. For all Serbian/Yugoslavian, Chinese, Vepr, or other larger size barrels it will require a professional gunsmith for installation.***
- Works with both 45° and 90° gas ports
- The ID of the sight is .597 and clamps in place in the existing gas block location. Acceptable journal range for gas block is .590-.599.
- The sight comes in a black oxide finish
- Drum and post included already installed
- Comes with AK Sight Tool
- Gunsmith installation is not required, but highly recommended
- 9/64 allen wrench needed for clamping screws (Not included - We highly recommend using a tool such as Wheeler inch torque wrench and the use of thread locker to prevent the screws from backing out under fire)
- 1/8th allen wrench needed for gas set screw
- Pinch screw torque 25in - 50in lbs (Due to varying spec of AK barrels)
- Weighs 4.2oz
Zeroing Recommendations:
For RD builds we will traditionally do a rough zero at 25yds with the rear sight set at the 100 mark. This should get you on paper at 100yds. At that point adjust your elevation for a 100 or 200yd zero and print groups from 25yds to 300yds to know your drop.
We suggest a 100yd zero for 7.62x39 AKs and a 200yd zero for 5.45x39 & 5.56x45. We've founds that these distances provide the best groups for combat effective accuracy at different distances out to 300yds+ before needing to "hold over" or combat effective hits.
