B5 Systems

B5 Systems Collapsible Precision Stock Short for AR-15

Name: B5 Systems Collapsible Precision Stock Short for AR-15
Brand: B5 Systems
SKU: CPS-1400

£265.00

VAT included.

£5 Tracked Delivery · 7–10 Business Days

Estimated delivery: Tue 8 Sep – Fri 11 Sep

Stock is imported from the USA to us, then shipped to you from the UK — we cover all duties and import charges, so there is nothing to pay on delivery.

Colour: Black

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Product Overview

The B5 Systems Collapsible Precision Stock (Short) is an adjustable precision rifle stock for AR-15 and M4 rifles, fitting any Mil-Spec-diameter carbine receiver extension.

A precision stock that collapses — the CPS Short brings adjustable cheek and length of pull to fighting-carbine dimensions.

The B5 Systems Collapsible Precision Stock in Short configuration attacks the classic compromise between precision fit and carbine handling. Its precision-adjustable cheek riser sets your eye exactly behind the optic, the buttpad adjusts to fine-tune the shoulder interface, and the whole stock still collapses on a Mil-Spec carbine extension for storage and transport. The Short length keeps overall dimensions tight — ideal for shorter shooters, armour users and compact builds.

B5 Systems over-builds its adjustment hardware, and the CPS carries that through: rigid, repeatable lockup and locks that hold their settings through recoil and rough handling. For scoped gas guns that need to fit properly and pack small, the CPS Short is a rare piece of engineering.

Why shooters choose the CPS Short

Precision-adjustable cheek riser — exact eye-to-optic alignment
Adjustable buttpad — fine-tuned shoulder fit
Collapses on a Mil-Spec tube — precision fit, carbine footprint
Short configuration — compact builds and shorter shooters
Three colours — Black, Flat Dark Earth, Coyote Brown

What the CPS Short fits

Fits AR-15/M4 rifles running a Mil-Spec-diameter carbine receiver extension (buffer tube), replacing a standard collapsible stock on the existing tube — no change of buffer or spring is normally involved. Commercial-diameter tubes are a different size and will not take it, so check your tube specification before ordering. Once fitted, set cheek height behind your optic and adjust the buttpad; the settings stay put once locked.

Specifications

Platform	AR-15 / M4
Fits	Mil-Spec carbine receiver extension
Type	Collapsible precision stock
Finish	Black, Flat Dark Earth, Coyote Brown
Length	Short
Adjustment	Precision cheek riser & buttpad
Brand	B5 Systems
MPN	CPS-1400 · CPS-1401 · CPS-1402

Precision that packs small. Order the CPS Short today — in stock at Xtreme Tactical Gun Parts with £5 tracked UK delivery in 7–10 business days.

Explore more: Rifle & Shotgun Stocks, Precision Rifle Stocks, AR-15 Parts or browse all B5 Systems.

Compatibility & Fitment

Fits AR-15/M4 rifles with a Mil-Spec-diameter carbine receiver extension (buffer tube). Check your tube specification before ordering.

Please confirm platform, interface and fitment requirements before ordering.

Technical Specifications

Platform	AR-15 / M4
Fits	Mil-Spec carbine receiver extension
Type	Collapsible precision stock
Finish	Black, Flat Dark Earth, Coyote Brown
Length	Short
Adjustment	Precision cheek riser & buttpad
Brand	B5 Systems
MPN	CPS-1400 · CPS-1401 · CPS-1402
SKU / MPN	CPS-1400
UPC / Barcode	814927022539

Shop Related Categories

Shop AR-15 Parts & Accessories View category

Shop B5 Systems View category

Shop B5 Systems Stocks View category

Shop Precision Rifle Stocks View category

Related Buying Guides

Not sure which option is right for your build? These guides break it down.

Buying Guide How to Choose an AR-15 Stock: Fit, Length of Pull & Platform

Buying Guide Best AR-15 Upgrades Under £100 (That Actually Make a Difference)

Buying Guide B5 Systems: The SOPMOD Story — Bravo, CPS & P-Grip Explained

View all buying guides →

Product Questions

What buffer tube does the short CPS need?

It fits AR-15/M4 rifles with a Mil-Spec-diameter carbine receiver extension, which is the same tube a standard collapsible stock uses. Commercial-diameter tubes are a different size and will not take it, so check your tube specification before ordering. If you cannot tell which you have, measure it or send us your rifle details.

What is the difference between the short and medium CPS?

The lengths refer to the stock body itself, which sets where the collapsed and extended positions fall relative to the receiver. The short version suits shooters who want a more compact overall length, run body armour, or have a shorter reach. If you shoot from the bench or prone with a longer hold, the medium-length CPS is usually the better pick.

What can be adjusted on this stock?

The CPS has a precision cheek riser and an adjustable buttpad on top of the usual collapsible length positions, so you can get eye height right behind an optic and still fold the stock down for transport. That combination is what separates it from a plain carbine stock, which only offers length. Set the cheek height first so your head sits naturally, then work out the length that puts the trigger comfortably under your finger.

Which colours are offered and is anything else required?

Short-length CPS stocks come in Black, Flat Dark Earth and Coyote Brown. Nothing extra is needed if you already have a Mil-Spec carbine tube, buffer and spring. If you are comparing options for a scoped build, precision rifle stocks gathers the alternatives together.

How will it be sent and can I return it?

Stocks are dispatched from the United Kingdom with £5 tracked UK delivery in 7–10 business days, and you'll get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or contact us and we'll help sort it.