Primary Arms AR-15 Parts & Accessories
Primary Arms is a Houston retailer that also designs its own optics line, from cheap red dots to prisms and LPVOs. AR builders know them for the ACSS reticles and solid optics for the money.
Primary Arms was established in 2008.
Market positioning: Mid-Tier.
Primary Arms has 420 products available on GunPartPicker, ranging from $0.99 to $1999.99.
Primary Arms Product Categories
- Rifle Scope: 176 products
- Optic Mount: 113 products
- Optic: 99 products
- Magnifier: 31 products
- Iron Sights: 1 product
Stock status: 144 in stock, 276 out of stock.
Primary Arms in November 2026 so far
Primary Arms ranks #77 of 514 brands on GunPartPicker so far in November 2026, just behind LaRue Tactical, with about 1 in every 500 parts builders added. Up from #98 in October. Builders are reaching for Primary Arms mostly for optic parts. The most added single part is the Primary Arms SLx 1-6x24mm SFP Rifle Scope Gen IV - Illuminated ACSS Nova Fiber Wire Reticle - Red Dot Bright®, taking the top spot from the Primary Arms SLx 1-6x24mm FFP Rifle Scope - Illuminated ACSS-RAPTOR-300BO/7.62x39.
Optic mounts are the busiest Primary Arms category so far in November: 12 products have come back in stock, several more than once. About 34% of the 420 Primary Arms products we track are in stock today.
Also popular this month: Primary Arms SLx 1X MicroPrism with RDB Illuminated T-Dot Reticle - H1/T1 Footprint, Primary Arms SLx 1-6x24mm SFP Rifle Scope Gen IV - Illuminated ACSS Nova 5.56/308 Fiber Wire Reticle, Primary Arms AR-15 Basic Scope Mount - 30mm and Primary Arms SLx 3X MicroPrism with Red Illuminated ACSS Raptor 5.56/.308 Reticle - Yard.
All Primary Arms monthly updates →
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Primary Arms products
Primary Arms Compact PLx-1-8X24mm FFP Rifle Scope - Illuminated ACSS Griffin MIL M8 Reticle$1749.99In stock
Primary Arms AR-15 Basic Scope Mount - 30mm$29.99In stock
Primary Arms SLx Advanced 30mm Red Dot Sight$29.99In stock
Primary Arms SLx 1X MicroPrism with RDB Illuminated T-Dot Reticle - H1/T1 Footprint$279.99In stock
Primary Arms 30mm PLx Cantilever Mount - 1.5" Height - 20 MOA Cant$249.99In stock
Primary Arms 34mm PLx Cantilever Mount - 1.5" Height - 20 MOA Cant$259.99In stock
Primary Arms SLx 1-6x24mm FFP Rifle Scope - Illuminated ACSS-RAPTOR-5.56/.308$222.58In stock
Primary Arms Deluxe Extended AR-15 Scope Mount - 30mm$59.99In stock
About Primary Arms
Primary Arms designs its own optics line, from cheap red dots to prisms and LPVOs. The ACSS reticles are the reason most people buy one.
Founded 2008, Houston, Texas · Lifetime warranty · ACSS reticles · LPVOs and prisms
In GunPartPicker builds
- #55th most added rifle scope brandTop part: SLx 1-10x28 SFP, ACSS Raptor
Why Primary Arms
Primary Arms is a Houston store that also designs its own optics line, Primary Arms Optics. Every Primary Arms optic gets inspected in house in Houston, and every PA optic, mount and accessory sold since 2021 has a lifetime warranty.
The ACSS reticles are why people buy one. They turn holdover into simple aiming points. The SLx 1-6x24 Gen IV is the core scope: a 30mm tube, 17.9 ounces, a CR2032 battery and 11 illumination settings for about $350.
The line runs in tiers: Classic, SLx, GLx and PLx. The SLx 1X MicroPrism is a 5.5 ounce etched reticle prism on an H1 and T1 footprint, the SLx 3X MicroPrism sells around $319, and the PLxC 1-8x is made in Japan.
Its rifle scopes are the fifth most added, at about $350 against roughly $400. Red dots and prisms sit at about $300 against roughly $485. Rifles wearing one are built on Aero receivers about 40% of the time.
The trade-off is the jump between tiers. The SLx is where the price is easy, but the Japanese glass in the PLxC 1-8x costs about $1,750. Some reticle and color combinations are also hard to find in stock.
We'd start with the SLx 1-6x24 for a general purpose AR, or the SLx 1X MicroPrism if you want an etched reticle that works with the battery dead.
- Every Primary Arms Optics scope, prism, red dot and mount sold since 2021 has a lifetime warranty.
- ACSS reticles turn holdover math into simple aiming points, so you're not counting hash marks.
- Primary Arms optics get a 100 percent in house inspection in Houston before they ship.
Brand Overview
Available At
What Builders Choose
Based on real buildsTop Primary Arms products builders are adding
Primary Arms SLx 1X MicroPrism with RDB Illuminated T-Dot Reticle - H1/T1 Footprint
Primary Arms Compact PLx-1-8X24mm FFP Rifle Scope - Illuminated ACSS Griffin MIL M8 Reticle
Primary Arms AR-15 Basic Scope Mount - 30mm
Primary Arms SLx Full Size 3X Magnifier
Customer Ratings & Reviews
No reviews yet for this brand.