$119.99
Share

Sentry 7 Set Screw Adjustable Gas Block

(8 reviews) Write a Review
SKU:
SA7-SM
UPC:
810646034693
Add to Cart

Options

$119.99
Or

Info

SKU:SA7-SM ,UPC:

Info

SKU:
SA7-SM
UPC:
810646034693

Description

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
- Proprietary 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

INSTRUCTIONS

8 Reviews

View All
  • George Hardwick - Dec 29th 2018

    5

    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

  • Tony - Apr 24th 2018

    5

    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.

8 Reviews

  • George Hardwick - Dec 29th 2018

    5

    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

  • Tony - Apr 24th 2018

    5

    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.

  • Ryan - Feb 15th 2018

    5

    Best Gas block and best company I ever had to deal with.

  • Shawn - Dec 8th 2017

    5

    I cannot say enough good things about the design/quality of SLR's adjustable gas blocks. The fit and finish are both immaculate!

    Thank you SLR!

  • Dave - Sep 19th 2016

    5

    Use this on my suppressed SBR. Can't say enough about the ease of installation and adjustment. Very smooth, solid clicks. Syrac was backordered for ever, so a friend recommended SLR. No regrets...I'm impressed and will be using them on future builds!

  • JP1519 - Sep 10th 2016

    5

    Fits under my BCM KMR with plenty of clearance for attachments around the block. The machining and finish is spectacular. It's all in the details and SLR crafted a superior product to ANY OTHER on the market. I ordered a adjustable GB from JP ent. but it just wouldn't work with my KMR and thank God it didn't because SLR's gas block it in a class all by itself . I live on the west coast and ordered the block on a Tuesday and it was on my barrel on Thursday! That's customer service. The settings are solid compared the the previous block I mentioned and I don't see anyway they will move unless you make them. Just can't get over the excitement I have for this block. No worries on reliability here. Get one!

  • D. Ralls - Sep 8th 2015

    5

    The best adjustable gas block on the market hands down.

  • Helotes Tactical - Feb 11th 2015

    5

    We are using these on all our custom builds where people will be running silencers. They are easy to adjust and work great.

Customers Also Viewed