Skip to content
Maxim SDX RFLX 300 Blackout, 8.5" Threaded Barrel, Cerakote Black, Maxim Brace, 30rd, ALG Trigger, RFLX Suppressor
300 Blackout8.5" barrelNFA Item: No
AR PistolCQB
73/ 100

Outfitters Score™

Good

Maxim scores as a quality build with premium pricing and a bare-bones configuration.

Our proprietary rating combines brand tier, price percentile within the caliber, feature completeness, barrel versatility, retailer availability, caliber practicality, and use-case fit.

Brand Quality20/25
Value8/20
Feature Completeness6/15
Barrel11/15
Availability9/10
Caliber9/10
Use Case Fit5/5

Full Specifications

Overview

BrandMaxim
Rifle Typepistol
PlatformAR15
Caliber300 Blackout
UPC680017492168

Barrel

Barrel Length8.5"

Muzzle

Suppressor ReadyNo

Sights & Optics

Optic ReadyYes

Dimensions & Weight

Magazines Included1

Compliance

CA CompliantNo
ClassificationAR Pistol
NFA ItemNo

What's Included (Complete Rifle)

This is a complete, ready-to-shoot firearm.

Upper Receiver

Lower Receiver

Barrel

8.5"

Bolt Carrier Group

Handguard

Brace

Grip

Trigger

Muzzle Device

Charging Handle

Gas Block

Gas Tube

Buffer Tube

Backup Iron Sights

Optic

SDX RFLX 300 Blackout, 8.5" Threaded Barrel, Cerakote Black, Maxim Brace, 30rd, ALG Trigger, RFLX Suppressor

Starting at

$3325.50

Across 1 retailer

Compare Prices

Impact Guns
$3325.50Buy

Build It Yourself

Want to customize? Build similar specs from individual parts.

State Legal Check

Prices are fetched from affiliate partners. AR15 Outfitters may earn a commission on purchases made through links on this site. This does not affect pricing or our recommendations.