PSA Sabre-15 Mini MK12 8.5" 300 BLK SBR

Mini MK12-styled .300 Blackout SBR with an 8.5-inch 1:5 barrel, PRI Gen III FDE tube, adjustable gas, Plan B flash hider, fixed entry stock, and Law Tactical folding adapter. SKU 51655241033.

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Key Highlights

•8.5-inch 1:5-twist .300 Blackout SBR with adjustable gas
•PRI Gen III round handguard gives the short rifle a Mini MK12 layout
•Plan B-compatible flash hider and Law Tactical folding adapter

Specifications

Price: $1,400
Weight: N/A
Calibers: .300 AAC Blackout
Rail Type: round-tube
Best For: suppressed shooting home defense cqb

Capability Profile

0-10 Scale Across 8 Axes

Compatibility Tags

family: modern-riflefamily: ar-patterntrigger: ar-fcgcaliber: 300blkinterface: picatinny-topbarrel: ultra-compactmag-type: stanagsuppressor-mount: plan-b

Overview

The PSA Sabre-15 Mini MK12 combines an 8.5-inch .300 Blackout SBR with the visual and handling cues of a compact MK12. A PRI Gen III FDE round tube surrounds the short barrel, while an adjustable gas block and 1:5 twist support suppressed use with heavy .300 Blackout ammunition. The factory Plan B-compatible flash hider provides the suppressor interface.

The lower uses a short FDE entry stock behind a Law Tactical folding adapter. The adapter shortens the rifle for storage, but the standard AR carrier and buffer system still require the stock to be unfolded for normal cycling. Radian controls, a Sabre two-stage trigger, and a Microbest carrier group complete the configuration. This is sold as an SBR, so ownership and transport require checking current federal, state, and local rules.

Key Features

8.5-inch 4150V nitride .300 Blackout barrel
1:5 twist and pistol-length gas system
Adjustable gas block
Sabre Plan B-compatible nitride flash hider
PRI Gen III FDE round-tube handguard
Microbest Fathers of Freedom BCG with Carpenter 158 MP bolt
Radian Raptor LT charging handle and Radian Talon 45/90 safety
Sabre two-stage DLC trigger with JP reduced-power springs
FDE entry stock with Law Tactical folding adapter

Pros

+Fast twist, adjustable gas, and Plan B mount suit a compact suppressed .300 Blackout build
+PRI tube gives the SBR a distinct Mini MK12 layout
+Radian controls, Microbest BCG, and two-stage trigger ship installed
+Law adapter reduces stored length

Cons

−The standard AR action must be unfolded to cycle normally
−PRI round tube offers fewer direct accessory positions than a full M-LOK handguard
−SBR ownership and transport rules vary by jurisdiction