CMMG Banshee Value Guide

The CMMG Banshee is a radial-delayed-blowback pistol-caliber AR-pattern firearm introduced in 2018, available in 9mm, 5.7×28, .45 ACP, 10mm, .22 LR, and other PCC chamberings. This CMMG Banshee value guide covers 2026 private-sale prices across six condition tiers and the caliber-driven price spreads.

What Is My CMMG Banshee Worth in 2026?

In 2026, a used CMMG Banshee in good condition is worth between $890 and $1,110 in most U.S. private-sale markets. A new-in-box CMMG Banshee retails $1,299 to $1,549 depending on caliber. The CMMG Banshee holds value strongly because of the patented radial-delayed-blowback system that reduces bolt mass and improves cycling smoothness — a meaningful engineering edge that competitors haven’t matched.

CMMG Banshee Value by Condition Grade

The CMMG Banshee value tiers below reflect the standard 9mm Banshee Mk17. Other calibers fall as follows: 5.7×28 trades 10-15% higher; .45 ACP trades similar; 10mm Banshee trades 15-25% higher; .22 LR Banshee trades 25-35% lower:

• Poor: $440 – $570 — heavy wear, function-only
• Fair: $625 – $760 — visible wear, all parts
• Good: $810 – $1,000 — light range wear, complete
• Very Good: $1,000 – $1,170 — minimal marks, original case
• Excellent: $1,170 – $1,335 — like-new, all paperwork
• New in Box: $1,299 – $1,549 — unfired, sealed

About the CMMG Banshee

CMMG introduced the Banshee in 2018 as a series of pistol-length PCCs and braced pistols using the company’s patented radial-delayed-blowback system. The 5″ barrel (standard Banshee 100) or 8″ barrel (Banshee 200) keeps the platform compact. Standard configuration uses CMMG’s RML M-LOK handguard, Magpul stocks (when configured as SBR), and 30-33 round magazines depending on caliber.

Why the CMMG Banshee Holds Its Value

The CMMG Banshee retains value because the radial-delayed-blowback system is genuinely better than the straight-blowback used by every competing PCC — reduced felt recoil, lower bolt mass, and lighter overall weight. CMMG quality control is consistently rated high in the PCC space, and the multi-caliber availability allows users to rebarrel rather than buying separate platforms.

What Affects CMMG Banshee Resale Value

Caliber drives the largest spread: 10mm and 5.7×28 trade highest; 9mm and .45 ACP trade mid-tier; .22 LR trades lowest. Generation matters — Mk17 (current 9mm) trades 8-12% above older Banshee 100. Cerakote colors (Black, FDE, OD Green, Sniper Gray) are popular; limited color runs add $40-80. Magpul stocks (when SBR-configured) add $80-130 over standard pistol braces.

Selling Your CMMG Banshee — The Smart Sequence

To capture full CMMG Banshee value, identify the caliber and Mk variant clearly in your listing, photograph the patented radial-delayed bolt carrier markings, and price against new at 25-30% off. Save your CMMG Banshee to your Gun Vault for value tracking.