About this stock
Sprinco Usa M4 Carbine Cs Enhanced Spring Kits is a stock for AR-15.
Check what the stock attaches to. On an AR that means mil-spec versus commercial buffer tube; on a bolt gun it means the exact action, and whether the barrel channel matches your barrel contour.
California note: on a featureless rifle an adjustable stock is pinned in one position; on a fixed-magazine (MagLock or CompMag) rifle it stays adjustable. See the California Rifle Compliance Guide.
Manufacturer details
Enhanced Power Buffer Spring. The design loads of the Blue spring are approximately 15% greater than the White spring for one of the considered Load Constants in the spring design. Refer to provided tuning procedure reference documents prior to calling for recommendations. We were encouraged to manufacture the Blue spring by Mike Pannone of CTT Solutions, who modified one of Sprinco's Red springs and recommended that they offer a spring with the loads of the Blue spring to address the high performance demands of other specimen platforms. While contemporary internet forum lore leans towards the use of the Blue spring with an H2 or ST-T2 buffer for 14.5 - 16” ML carbines, nothing is set in stone due to the vast range of gas port values in the wild that have come into play since we first entered the arena.
Specifications
- Brand: Sprinco Usa
- Fits: AR-15
- UPC: 657780250073
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
