Uploaded March 2026 | Updated September 2026, 2 weeks ago
Primary Arms SLx 4.5-27 review is here. The Deca reticle shows off some new chops but the SLx shell does nothing in this budget offering. Every angle confuses me more and now I'm shopping for a boat to attach this to. What is going on here.
Build details and links ➡️ link.thinlinedefenseco.com/PASLx4-27Build
00:00 Review thing
02:40 Sponsor - HRT - Discount Code TLDco
03:18 Biases
04:20 Tabletop Overview
05:22 Diopter + Magnification Ring
07:08 Deca Reticle Elevation Turret Combo
09:15 Parallax Confusion
11:34 Illumination
12:23 Test - Magnification Throw
13:05 Test - Eye Relief (Exit Pupil)
14:14 Test - Parallax
15:10 Test - Turrets
16:00 Test - Illumination
16:40 Test - Image Quality
17:29 Range - Zero'ing
17:42 Range - 200
17:55 Range - 300
18:30 Range - 430
19:34 Range - 600
21:20 Final thoughts and Ranking
(DISCLAIMER: Filming adhered to safety protocols at a licensed public range, supervised by certified professionals, featuring only legal items. Compliance with all Federal, State, and Local laws was maintained throughout. This video does not reflect the opinions of any federal entity in any way and all opinions are solely those of the TLD team. Magazines in videos have all been modified to the much less scary 29-round magazines.
Remember, We're idiots.
This post may include paid advertisements or affiliate links. If you use one of the gear links, Thin Line Defense Co earns a small commission without any additional cost to you. This supports the growth of our channel and enables us to review more quality gear for you. Thank you for your incredible support!)
Primary Arms SLx 4.5-27 review is here. The Deca reticle shows off some new chops but the SLx shell does nothing in this budget offering. Every angle confuses me more and now I'm shopping for a boat to attach this to. What is going on here.
Build details and links ➡️ link.thinlinedefenseco.com/PASLx4-27Build
00:00 Review thing
02:40 Sponsor - HRT - Discount Code TLDco
03:18 Biases
04:20 Tabletop Overview
05:22 Diopter + Magnification Ring
07:08 Deca Reticle Elevation Turret Combo
09:15 Parallax Confusion
11:34 Illumination
12:23 Test - Magnification Throw
13:05 Test - Eye Relief (Exit Pupil)
14:14 Test - Parallax
15:10 Test - Turrets
16:00 Test - Illumination
16:40 Test - Image Quality
17:29 Range - Zero'ing
17:42 Range - 200
17:55 Range - 300
18:30 Range - 430
19:34 Range - 600
21:20 Final thoughts and Ranking
(DISCLAIMER: Filming adhered to safety protocols at a licensed public range, supervised by certified professionals, featuring only legal items. Compliance with all Federal, State, and Local laws was maintained throughout. This video does not reflect the opinions of any federal entity in any way and all opinions are solely those of the TLD team. Magazines in videos have all been modified to the much less scary 29-round magazines.
Remember, We're idiots.
This post may include paid advertisements or affiliate links. If you use one of the gear links, Thin Line Defense Co earns a small commission without any additional cost to you. This supports the growth of our channel and enables us to review more quality gear for you. Thank you for your incredible support!)
