The Ruger PC Backpacker is a semi-automatic carbine chambered in 9mm, built around a design that folds and packs down for easy transport. At 35 inches overall with a 16.12-inch barrel, it handles well in tight spaces without giving up much stability. The Type III hard-coat anodized aluminum receiver keeps weight down to 6.2 lbs. 
 

Key Specifications: 

• Model: StockMagpul PC Backpacker 
• Caliber: 9mm 
• Barrel Length: 16.12 inches 
• Overall Length: 35 inches 
• Capacity: 17 rounds 
• Weight: 6.2 lbs. 
• Finish: Black (Type III Hard-Coat Anodized) 
• Receiver Material: Aluminum Alloy 
• Front Sight: TruGlo Tritium 
• Rear Sight: Adjustable Ghost Ring 
• Thread Pattern: 1/2"-28 
• Twist Rate: 1:10" RH 
• Grooves: 6 
   

Features: 

The TruGlo Tritium front sight and adjustable ghost ring rear are a practical combination for low-light use. The threaded 1/2"-28 barrel accepts suppressors and muzzle devices. A 17-round magazine cuts down on reloads during range sessions, and the 9mm chambering keeps recoil manageable for most shooters. The Magpul stock adds compatibility with a range of aftermarket components.

The Ruger PC Backpacker 9mm Carbine draws generally favorable reviews, with a few recurring points of criticism.

The compact, folding design gets consistent praise -- owners appreciate how easily it packs for transport or storage. The folding stock is frequently called out as one of the more practical features on the platform.

Supporters note its versatility across home defense, casual range use, and backcountry carry. Glock-compatible magazine acceptance is a selling point for owners who already run Glock pistols and want to share ammunition and mags.

Feeding and ejection are described as reliable by most owners. Accuracy at practical ranges draws favorable comments, and maintenance is generally considered straightforward.

On the critical side, some users find the ergonomics -- stock shape and grip in particular -- uncomfortable during longer sessions. Factory sights get mixed reviews; a number of owners swap to optics early. A handful of reviewers mention that recoil management feels slightly behind competing carbines in the same caliber.

Pricing is viewed as fair relative to the competition, with most owners considering it good value for a pistol-caliber carbine with this feature set.