Sentry .750" Set Screw Version - Melonite QPQ Finish
.400" Set Screw Spacing
1.3 oz
US PATENT NO. 9,410,756
Note- If you have a barrel with no dimple or one dimple under the gas port either our .400 or .450 set screw spacing blocks will work fine. There is no difference in the blocks just the front set screw location.
- 15-position adjustability from 0 - 0.125" port opening
- Metering screw and screw bore design allows repeatability and reliability only SLR has been able to deliver
- Single tool click to adjust gas metering
- Melonite finish 4140 Precision machined gas block
- Melonite finish 4140 Nexturn Swiss precision metering screw
- Stamped Alloy Flat Spring with 1400deg temper
- Melonite finish 4140 detent plunger
- USES STANDARD GAS TUBE
- Tool, roll pin and mounting screws included
Works with all SLR Handguards and most others
Really great adjustable Gas Block, high quality, installed easily, using it on a M5 .308 build 18” heavy profile barrel and allows me to easily dial in the gas for shooting suppressed or unsupervised, highly recommend this Gas Block
has performed well
Really great adjustable Gas Block, high quality, installed easily, using it on a M5 .308 build 18” heavy profile barrel and allows me to easily dial in the gas for shooting suppressed or unsupervised, highly recommend this Gas Block
has performed well
Great quality gas block, super fast processing and shipping, SLR will definitely get my business again, 5 Star's across the board!
This is the best adjustable block to regulate the gas on ARs. This is a must for a suppressed rifle.
Replaced the non-adjustable gas block on an over gassed Daniel Defense SBR with a suppressor. After adjusting the gas block it felt like I was shooting a different gun. Blow back was gone and felt recoil was reduced significantly which greatly improved my confidence in rapid follow-up shots. It was a night and day difference. Highly recommend.
I love these SLR adjustable gas blocks. I own at least 6 of them, and run them on all my suppressed AR platforms....308, 5.56, 300BLK, 7.62. It allows you to bleed off any unneeded gas, only allowing the amount you need to cycle your bolt. This results in less recoil, smoother cycling, reduced wear & tear on rifle, cleaner received as less dirty gas returns, less burning on the eyes with over gassed rapid fired weapons. Worth the money...and easy to adjust in the field if need be.
Gas block was easy to install and adjust. Works great. And the customer service was great and fast
I already have a few of these gas blocks and for me they are hands down the very best adjustable gas block available. I’m leaving this review for another reason and it’s not on the quality of their product but on the quality of their customer service. I ordered this gas block for a Christmas gift and the order was done in time for a delivery before the big day BUT the shipping was the problem. Not on SLR’s end but once it was on the way to me. It got closer to Christmas and the shipment was not moving from a point midway in the shipping to me. So Mr. Todd took it upon himself and sent out another order to me so I would get my order in time for Christmas. Great product backed up with even greater customer service. Thank SLR
Bought this a couple of years ago, had an issue over tightening the set screws (my fault). Customer service was phenomenal- they went over and above. This gas block is the ultimate in adjust-ability. Well worth it and I can shoot any weight 223/5.56 with perfectly tuned gas from my carbine length system. I'm certain this will also extend the life of my upper.
Best Gas block and best company I ever had to deal with.
