The Beretta Stock Drop Adjustment Kit, part of the B-Fast shim system, allows shooters to fine-tune the fit of compatible Beretta semi-automatic shotguns rather than relying solely on factory geometry. Designed for models including the AL391 Urika, Xtrema, Xtrema 2, 1301 Comp, 1301 Tactical, A350, A400 series, and A300 Outlander, this hardware lets users adjust comb height, drop, and lateral cast to correct eye alignment, accommodate eye dominance, and improve gun mounting consistency.
The kit includes semi-auto front spacers and stock plates, specifically featuring one front spacer 55/60, one plate 55/60, one front spacer 50/65, and one plate 50/65. The keyed shims correspond to specific drop and cast values, while redesigned locking screws seat tightly against the towers to maintain zero under heavy recoil.
A price and stock aggregator built for a market the incumbents stopped improving.
We compare listings across dozens of retailers and normalize everything to true cost-per-round — not sticker price, not case-size guesswork.
Who we are
DealsGunsAmmo (DGA) is an independent data provider tracking price and stock across the ammo, firearm, and parts market — giving buyers and the industry an outside, macro-level view of where the market actually stands.
What we’re building
A data-driven platform meant to be the go-to spot for purchasing decisions — comparing offers across vendors and tracking price history, so you can read the market as a whole, not just one listing at a time.
Who we serveNOW
Today, we help buyers on their purchasing journey with price alerts and a real look at where prices have actually been.
LaterNEXT
Down the road, we plan to sell that same market data back to vendors — inventory demand, customer interest and sentiment, and competitive pricing.
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