Home / Firearm Parts / Cross Armory / Cross Armory Flop Stop for AR-15 and M4 Rifles - CRFS-PP
Cross Armory Flop Stop for AR-15 and M4 Rifles - CRFS-PP

Cross Armory Flop Stop for AR-15 and M4 Rifles - CRFS-PP

Lowest Price
MSRP
$42.99
Savings
40% off
In Stock at
14 Stores
Updated
Jun 24, 2026

Specifications

Model
Flop Stop
Series
Pin Pal
MPN
CRFSPP
UPC
656793308764

Description

Cross Armory's Flop Stop holds the upper receiver of your AR-15 in the open position for faster, safer, and more convenient reloads where compliance requires separating the upper receiver from the lower receiver. When the receivers are opened, the weight of the barrel causes the upper receiver to fall forward, pinching fingers and creating an unstable and dangerous weapon. The Flop Stop protects both you and your weapon. This model includes Cross Armory's Pin Pal front takedown pin replacement with a locking nut and lubricated captive bearing to help prevent undue wear on the front pivot point. The Pin Pal is made from 4140 ordnance steel with melonite hard coat, and is removable should you choose to return to your factory configuration.The Flop Stop is designed to work with all other compliance products, not limited to Cross Armory, and the Pin Pal fits any standard AR-15 configuration. Typical compliance reloads involve separating the upper receiver from the lower receiver. When the receivers are opened, the weight of the barrel causes the upper receiver to fall forward, pinching fingers and creating an unstable and dangerous weapon. With Cross Armory's FLOP STOP, the upper receiver and barrel are held open by the Flop Stop, allowing for faster and safer reloads. When paired with Cross Armory SAFE MAG and QUICK PINS, you can reload with a flick of the wrist literally. Cross Armory's FLOP STOP holds the upper receiver of you AR-15 in the open position, allowing for faster, more convenient reloads. Cross Armory's Flop Stop is designed to work in harmony with other Cross Armory AR compliance products, but is not limited to Cross Armory products. Cross Armory respects your right to choose what products you equip your AR with, so the FLOP STOP is designed to work with ALL other compliance products as well. So if you bought a modified aftermarket fixed magazine locking device of any kind, FLOP STOP is compatible and will help make your AR function better.Features:Reduces separation of upper and lower receivers when pivoted about the front takedown pinComes with Cross Armory pin palPin pal is made from 4140 ordnance steel with melonite hard coatFlop stop cures the common symptoms of the Limp Barrel Syndrome or LBS
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